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the 13 most beautiful bridges
United States, \Historic bridges, all with a distinctive image, a strong artistic influence, reflecting the characteristics of the times, a record of the development process of human civilization. The following is the United States \> Wei Qiao bridge (also known as Old Bridge, Ponte Vecchio) was built in 1345, to Florence (Florence is the old name of China's early years) the oldest bridge. \Wei Qiao bridge has two floors of the building, a former palace Uffizi Pitti Palace, the corridor leading to the far shore. On both sides of the bridge are special products of the store, stretching to the river behind the store, and specialty shops selling gems and precious metals-based

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2, reminiscent of Tower Bridge

The bridge was completed in 1894, with a unique Victorian elegance temperament, but extremely tedious bridgehead carving represents the flashy extravagance of the 17th century Baroque style. Built between the two towers of a cross-layer bridge. The lower is the movable bridge, 6 lane bridge, you can access tons of seagoing vessel; upper fixed footbridge. Up and down the stairs inside the tower bridge, which consists of museums, galleries, shops, bars and so on. Denta overlooking the River Thames downstream can enjoy the scenery

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3, Rotterdam, Swan Bridge

This striking Ella Smooth (Erasmus) bridge since 1997 to become the world praise the goal. Young Amsterdam architect Ben van Berkel broke through the idea of building a simple function, the bridge created with the architectural history of art. This cable-stayed bridge connecting north and south of the city of Rotterdam's Kop van Zuid, a wonderful gesture to 2,600 feet across. Cable hanging in the tower door, bent against Rally in support of the bridge. The building has many aliases, one of which is the \Swan Bridge is not only the world's longest cable-stayed bridge, the Netherlands is the highest bridge. The cost is only 165 million euros. Erasmus Bridge beyond the traditional bridge-building

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4, blink De Hai Gates Millennium Bridge

Gates Hide Millennium Bridge (Gateshead Millennium Bridge) is only used for walking and cycling through. The bridge across the River Tyne in England, the locals affectionately called the bridge for the blink of an eye bridge. Because this arc-shaped bridge can rise up, rise up to the ship when it passed the bridge above the arc of the cable looks like a giant eyelid, which is a century building in the River Tyne's first open Closed Bridge

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5, across the waters of the Forth Railway Bridge

Forth Bridge (Forth Bridge ), also known as Forth railway bridge, is the Fox River north of the city of Edinburgh (Firth of Forth) on the railway bridge. Railway bridge was built in 1890, is the proud British engineering masterpiece. Most of the bridge structure is steel, the legendary all paint again until after the bridge, the front has faded, to get started painting again, so \

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6, Berlin, Magdeburg, cross the river bridge

this 918 m long Magdeburg Water Bridge in Germany, Magdeburg, near Berlin, which lasted 6 years, spending 500 million euros completed. It is a precise channel across the Elbe River bridge connecting East and West Germany is an important project. When you see this amazing bridge, you will be surprised! The bridge is not to make the vehicle go, but the ship filled with water to go, and pedestrians can get around!

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7, France Milo viaduct

France Milo Viaduct (Millau Viaduct) stayed bridge using the form for the four-lane road, to seven cantilever bridge pillars, across the Tarn River (Tarn River), 270 meter high bridge, cantilever pillars up to 343 meters the highest point, 比巴黎艾菲尔 Tower also high; bridge length of 2.5 km, weight 3.6 tons, from December 2001 to start, take 3 years to complete, its height, the completion time are set in the world, drive on it like a walk in the clouds.

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8, Japan Kintaikyo

Kintaikyo (Kintai Bridge) in the Japanese city of Iwakuni in Yamaguchi Prefecture Kam Chuen River, is a five-hole wooden pier bridge, span 27.5 m, length of 193.3 meters, width of 5 meters, the first building completed in 1673, is one of Japan's three famous bridges. Their views are known as \-------

9, Japan's Akashi Kaikyo Bridge

Akashi Kaikyo Bridge length of 3911 meters, support sling the distance between the two main towers of 1991 meters, is the world's longest suspension bridge. The main tower from the sea surface height and the Tokyo Tower is almost similar. Sling on a variety of colors of lighting equipment at night can create a variety of tastes and styles Jiong The Landscape

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10, Denmark, Oresund Bridge

Oresund Bridge (Oresund Bridge), also translated as \Bridge of three parts. The bridge from Denmark, Sweden joint venture between the two countries, across the Oresund Strait, connecting the Danish capital of Copenhagen and Malm?, Sweden, one lines, length of 16 km, is the world's tenth Bridge. The building is the main channel of curiosity in the construction of artificial islands by submarine from the seabed to the tunnel under the bridge by

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11, the Bosporus Bridge

Istanbul, Turkey, the first link Asia and Europe Bosporus Bridge, the bridge is narrow, such as wing design. The bridge completed in 1973, span 1074 meters

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12, the Sydney Harbour Bridge

Sydney Harbour Bridge (Sydney Harbour Bridge) is the world's largest (but not the longest ) steel arch bridge, and is located in the beautiful port alignment, the south and the north shore of Sydney, linking hanging racks like appearance, the \>--------------------------------

13, Brooklyn Bridge

New York, New York, Brooklyn Bridge across the East River, connecting Brooklyn and Manhattan Island, May 24, 1883 formally delivered . Bridge length of 1834 meters, bridge hanging by the rope on a million pieces of 41 meters above the water, was then the world's longest suspension bridge, is the world's first bridge constructed of steel, is considered when following the completion of the Ancient World Seven After the eighth wonder of wonders, known as the industrial revolution the world seven wonders of landmark construction projects. Celebrate the centennial of the bridge, the U.S. has issued a 20 cent stamp to commemorate the face value, to show the majesty of the bridge and style. Modern American poet Hart? Crane also wrote a special poem for it, the poem were called \Unfortunately, the opposite is now no longer see the twin towers of the ......

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Comments: The selection of staff may have never been to China, China should not be seen as a bridge, not to mention the pride of the Chinese arch bridge, that is the modern Hangzhou Bay Bridge, Bridge, East China Sea Bridge. . . . . . Bridge, the bridge is a good ah. . . .

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spectacular is a good ten dams

1, the Three Gorges Dam --- China
2006 年 5 months, the total length of 2309 meters of the Three Gorges dam built across the board, pouring across the board to meet the design elevation 185 meters above sea level, is the world's largest concrete gravity dam. Three Gorges Project is by far the overall efficiency of the world's largest water control, flood control benefits in the great play and shipping efficiency, the 18.2 million kilowatts of installed capacity and 847 billion kWh of annual power generation volume ranking first in the world.

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2, Hoover Dam --- U.S.

completed, it is considered one of the wonders of the twentieth century. Despite its size and power supply in today has been exceeded, it is still probably the most world's most famous landmark of the dam. It was built in 1936, is still preserved Gothic decoration, to give their own flavor of art, to give inspiration. And many other dams just practical. It is named after President Hoover because he is very helpful for the project. Since 1985, the dam has been a historic milestone in the United States. Its data is also impressive, height of 221 meters, 200 meters thick at the base (top 15 m). This consumes a lot of concrete. The process of construction in progress, more than 100 fatalities, including a father and son --- surveyor JG. Tierney (popular history that he was the first person to die from this project.) His son, Patrick W after 13 years and died the same day at work, is considered to be the last one for this project to death.

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3, a large dam --- Dick Sens

Switzerland Switzerland is not the largest country in Europe, but its pressure is highest in the entire European continent. The dam for the river to intercept Dick Sens River, when the dam full of water, the water depth of about 1,000 feet, the water capacity of more than 400 million cubic meters. The dam, 2,365 meters amazing enough, right? Curiously, the dam where the river (Dick Sens River) is very small. In fact, the dam where the water is one of over 100 kilometers from the tunnel system will be Dick Sens River and other rivers where the water gathered together. The water mainly from the glaciers. In 1957, the dam fills with water, and the original stand tall here since the 19th century dam submerged.

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4, Kroon dam --- Iran

the dam began operation in 2005,[link widoczny dla zalogowanych], does play a significant role to meet the electricity needs. It is up to over 460 meters, up to 205 meters. This is a dam, built in the rocky and narrow canyon on the really right. It not only has aesthetic characteristics curve, which is the arch of the water pressure to the bottom of the dam. This is just to strengthen its foundation. Really amazing.

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5, Inguri Dam --- Georgia

the dam built in the Soviet Union, the pinnacle of engineering development time. Although the construction since the early 60s, but only put into use until the 70's. Nevertheless, the dam remains the world's highest concrete arch dam. It is up to 217 meters, that is 890 feet, is really astounding. The Soviet period, the border of their territory, and there is no problem, but after its collapse, the dam also happens to be in Georgia. However, there is a part of its service station in the Republic of Abkhazia.

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6, Nagar Zhu Nasa Garr Dam --- India

the dam was built in the Indian region of Andhra Pradesh, Krishna River, and its towers up to 124 meters, can accommodate up to twelve million cubic meters of water. It is still the largest dam in Asia, but also the oldest. It was built in 1956, after a very long time to put into use. Since the beginning of democracy in India can not the application of modern construction equipment, the dam can only be built of stone instead of concrete. You can imagine how long this project will take until 1969 before completion, and the top of the gate after the installation is completed in three years, since the dam was put into use. Seven people involved in this project, about 200 people died in construction accidents.

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7. 斯里赛拉姆 dam
we will continue to remain in India rather in the Krishna river, this time to visit the Na Jiaqiong that Sharjah dam. It is also the area around the river provides hydroelectric millions of people. It was built in Nara on a Grand Canyon Manet Mountains, about 500 meters.

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8, Glen Canyon Dam ---- American

Glen Canyon Dam in the beautiful Colorado scenery as the background, was built in Arizona on the Colorado River. Can be seen from the surrounding environment, relatively dry place, while the dam's mission is to this part of the United States in particular storage of water resources in arid areas. It is up to 216 meters, 470 meters long at the top of the arch. It is a result of an impact on the local flora and fauna, been criticized, but the three states to meet the needs of the community.

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9, Iran Triplex Dam --- Brazil

巴西伊泰普 dam's name is from the past in this neighborhood come on a small island, which means \Imagine the time when the dam water drainage voice. The length of the dam amazing, up to 7235 m, height of 225 meters. In order to show that on the list of other dams in the fair, must indicate, in fact, the dam formed by the three dams.

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10, the Aswan Dam

built on the Nile's Aswan High Dam, one of the world's seven major dams. It transversal Nile gorges. Dam 3830 m long, 111 meters high. Assistance in 1960 under the former Soviet Union under construction, completed in 1971, which lasted more than 10 years, costing about 10 billion U.S. dollars, with 43 million cubic meters of building materials, equivalent to 17 times the Great Pyramid is a set of irrigation, navigation, power generation utilization project. Dam is completed, the south to form a man-made lake surrounded by mountains. Aswan Reservoir. The lake more than 500 kilometers long, with an average width of 10 km, an area of 5,000 square kilometers, is the world's second largest artificial lake, depth, and water storage capacity is largest in the world.

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deepest lake

10 Environmental Science Web site, according to reports, you have a bottomless lake travel before? There, you can feel the cold water, only the foot, can also only see the infinite darkness. Even if you are the best swimmer in the world, the existence of deep fear is understandable, but when you imagine the infinite depths of the legend and mystery, it is the fear may devour your life. For each lake, its depth, especially with climate fluctuations in rainfall are at any time. Knowing this, today we come to explore dozens of the world's deepest lake and the legends behind them.

tenth. Matano Lake Lake Matano
with the original style of the Matano lake 1936 feet deep (595 meters), located in Indonesia's South Sulawesi province. It is an important local source of fresh water and is the deepest lake in Indonesia. Bahasa Indonesia said Danau Matana, is printed structures Lake Sulawesi island, an area of 164.08km2, lake elevation of 382m. Maximum depth of 590m, an average depth of 60m, water storage 9.8km3, is a deep lake in Indonesia and Southeast Asia. Matano Lake out of water from the Patea river flows through a waterfall to the Da Maha after the Luna Lake (malili Lake). Matano Lake because of its extremely clear water and unique species known as time goes on, it's a single species from the original development to the current diversity.

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ninth. Crater Lake Crater Lake

have volcanic eruptions, to the crater lake located in Oregon's Crater Lake National Park, add unlimited beauty. Surrounded by cliffs up to 2,000 feet and two small islands, especially the magnificent blue water it, making it the most popular outdoor photographers point of collecting folk songs. Crater length 9.5km, width 8 ~ 9.5km, area 52.9km2, lake elevation 1883m. Maximum depth is measured in July 2000 the results of 594 meters (1949 feet) (1996, had also measured the depth of 608 meters), is the second deepest lake in North America continent (after Canada's Great Slave Lake), the United States deepest lake. A lot of snow in winter it provides a source of life, the water temperature never rose above 13 ℃, the frozen lakes are known to occur only once. In North America, it is the most clear and pure water, 1997, U.S. scientists measured the maximum transparency of the lake to reach 43.3m, more than Lake Mashu in Hokkaido, Japan (41.6m) and Lake Baikal (40.5m), door to the world . Of course, is the case in the absence of pollutants.

crater lake originated from 7700 years ago Meizha Ma volcano (12,000 feet) of a major eruption. There is also a legend, Klamath Indian tribes and labor Meizha Ma volcanic mountain, the god of the sky between Shikai Er experienced a fierce war. At this time, the Klamath Indian workers fell in love with the daughter of Lu Ha tribal leaders, but he was refused, so he decided to punish the people with the curse of the fire. Shikai Er Klamath Indian tribes to help workers struggle with the gods. Finally, after a fierce fight in, the Shikai Er defeated the workers, then the top Mazha Ma volcano collapsed, the workers trapped forever in the hell. Finally, in order to get lasting peace, Shikai Er decided to use the magnificent blue water to fill the hole. So there is a blue water lake of fire

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eighth. Great Slave Lake Great Slave Lake

Great Slave Lake near the northern boundary of Alberta, the Northwest Territories covering 11,000 square kilometers of Canada , is Canada's second largest lake. Southwest to the northeast of the lake was a long 480 km wide, 48 ~ 225 km, an area of 28,600 square kilometers, the lake elevation of 156 meters, deep and clear water, water storage capacity of 2.088 trillion cubic meters. Up to 614 meters (2015 feet) depth to make it the deepest lake in North America. As the temperature is very low in this region, up to eight months of the year will be part of the frozen lake in winter, thick ice is amazing, and even trucks can drive on it.

is still no evidence that this lake live an unidentified large animal, but many visitors have been to this lake is that there is \Some people said that they had seen a creature like a big hump in the water, like swimming, said the animal has the same size as the crocodile. It has been a Roman Catholic priest through the house windows have observed a long leader, six or seven feet in length quickly swim to the biological shore of the lake, the mysterious creature was later named \

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seventh. Issyk-Kul Lake Issyk Kul Lake

Issyk-Kul Lake is located north of the Tianshan Mountains in the Kyrgyz Republic is a landlocked saltwater lake, east to west, 178 km, 60 km from north to south, an area of about 6236 square kilometers, the lake volume 1738 cubic meters, an elevation of 1608 meters. Some experts believe that 2,500 years ago had here is an old city. Average depth of Lake Issyk-Kul 305 meters (1000 feet), the lowest point of the depth of 668 meters (2192 feet). Is not only the territory of Kyrgyzstan's largest lake, is also the world's largest inland lake in one of the mountains. Seck from the Kyrgyz capital Bishkek Lake about 280 km, year-round ice free, unique scenery, with \Lake in the mineral content of 6%, to import more than 90 rivers of the lake, but no one out, there are beautiful lakeside scenery, and cool and pleasant summer climate, is a famous resort in Central Asia, tourism, summer resort.

said that in the former era of Islamic rule, the city's ruler King is a long Aosang Nasdaq has long monster ass. He always hidden ears, each knows the secret of the barber whether he was killed. One of the barber in the \Discover the history behind the story more exciting, archaeological research shows that there is an advanced in Central Asia, ancient civilizations, it is now the location of the Issyk-Kul. It is particularly worth mentioning is the northwestern shore of Lake Issyk-Kul is the Tok MACK, here called as broken leaves, is the birthplace of the great Chinese poet Li Bai, Li Bai can imagine those magnificent mountains and rivers beautiful, but also must have a Yisai grams of the shadow of the lake.

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sixth. Mara Lake Victoria Lake Malawi Lake Malawi

, also known as Lake Nyasa, the most in the Rift Valley south, in Malawi, Mozambique, Tanzania, between an area of 30,800 square kilometers, north and south 560 km long from east to west length of 24 to 80 km, an elevation of 472 meters, is Africa's third largest freshwater lake. 706 m (2316 ft) in depth making it the second deepest lake in Africa. As in tropical waters, it has a lot of fish.

researchers studied hundreds of thousands of years ago, Lake Malawi in the sediment core samples and found that the water level dropped to about 2,000 feet when the land around the lake into a semi-desert and arid zones. This may be why the early colonial Africa, people fled to other parts of the world causes. Lake Malawi is the world's a strange lake. Around 9 am each day, accommodating, Lake Malawi lake began to subside, until the water level dropped more than 6 meters before stop; about \4 hours, the \7 pm, the water began to stir, saw the water rising, until the flood overflow, pouring all directions; about two hours later, Lake Malawi was calm. However, the rise and fall of water level in Lake Malawi there is no certain rules to follow, sometimes once a day, sometimes a few days back, sometimes a few weeks time, around 9 am every time, \for 12 hours. The lake level fluctuations and orderly despite the strange phenomenon of geographers for many years to explore various countries, has yet to solve puzzles.

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fifth . O'Higgins / San Martín Lake O'Higgins / San Martín Lake

located in Patagonia, Aisen region and the province of Santa Cruz between San Martin Lake, is known as the Chilean O'Higgins Lake and Lake San Martin, Argentina. The lake stretches twists and turns, Chile and Argentina across the state line between the two countries, part of the territory in Chile is called O'Higgins Lake, part of the territory in Argentina called San Martin Lake. The two peoples in such a way to commemorate the O'Higgins and San Martin in the two fought side by side in the war of independence hero of Latin America.

it to 836 meters (2742 feet) maximum depth as the deepest lake in the Americas (based on the O'Higgins glacier near the measurement). The lake has eight clearly defined branches, including blue lake upstream from the powder.

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fourth. Lake Vostok Lake Vostok

scattered around the world in the 140 glacial lake, Lake Vostok is the largest and deepest glacial lake, maximum depth of 900 meters (2950 feet). East Lake is located near the South Pole in the Russian Vostok ice thickness of 4000 meters under the Antarctic ice sheet surface center of the next million, three thousand feet of the East of the Russian station, area and close to Lake Ontario, about 250 km long and 50 kilometers wide, area of about 15,690 square kilometers, contains about 5400 cubic kilometers of fresh water may be the purest lakes on Earth. British and Russian scientists in 1996 discovered it.

average temperature of the lake -3 ℃, but the ice on the lake have led to tremendous pressure of the water is still freezing below zero. The scientists also found that the lake ice may exist in forty years, and that is, the lake may have more than 50 million years,[link widoczny dla zalogowanych], and it may already exist at the bottom of the water more than 100 million years. So far, no evidence exists in Lake Vostok creatures. Even so, there may be species living in the dark depths, they likely evolved into the lake of oxygen-rich environment has to adapt to the variation of species.

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third. Caspian Sea Caspian Sea

in the Russian Federation and Iran, the southern region between the north, flowing with the planet's largest inland lake sea. South and southwest of the Caspian Sea and the Caucasus are Elburz surrounded by mountains, several other side is low, flat plains and lowlands. Li Hainan North narrow, shape, somewhat similar to \The average width of 320 km things, shore line of about 7,000 km, an area of 371,000 square kilometers, the size of the Baltic Sea is almost equivalent to the scale of the Sea of Azov is 10 times the total area of lakes in the world quite (270 square kilometers) of 14% than the sum of the famous Great Lakes area (24.5 million square kilometers) is greater that 51%.

This is a 5.5 million years ago, because the formation of continental drift inland saline lakes (salinity of approximately 1.2%) to 1025 meters (3363 feet) deep among the world's third deep lake. Caspian basin is very rich and varied animal species: the large number of sturgeon fish (a source of caviar), and Li Haite some fish (Caspian Sea white fish), Caspian roach, Caspian bream and an array of rare species of salmon, These are only in the Caspian Sea only.

energy rich Caspian Sea, such as oil and natural gas since the 10th century began to dig. Today, the Caspian Basin's oil valuation of more than 12 trillion U.S. dollars.

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second. Tanganyika, Tanzania Lake Tanganyika Lake

was drinking Nika vertical strip north of Hunan, 670 km long, is the world's most long and narrow lake, 48 to 70 km from east to west, an area of 32,900 square kilometers, the lakes in Africa, second only to Lake Victoria. An elevation of 774 m, maximum depth of 1470 meters lake (4823 feet),[link widoczny dla zalogowanych], is the deepest lake in Africa is second only to Russia's Lake Baikal, the world's second deepest lake. Lakes are Burundi, Democratic Republic of the Congo (45%), Tanzania (41%) and Zambia division.

Lake Tanganyika is not only the world's most narrow and one of the deepest lakes, and is one of the famous submarine depression. Its elevation of 774 m, the deepest lake height difference and, that is, its deepest lake 696 meters below sea level, the world below sea level on the bottom of the fourth potential depression. If you take the Lake Tanganyika, the average depth of the ocean surface lower than the world more than 200 meters.

the lake by two British explorers Richard Burton and John Baker, accidentally discovered in 1858, they think the lake name comes from the Bantu, in the Bantu, the \Ka \The recent \

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first. Baikal Lake Baikal Lake Baikal

, also known as \meaning \Lake-type narrow bend it, like the moon set in the southern edge of Siberia. Lakes full 636km, equivalent to St. Petersburg from Moscow to the distance between the average width of 48km, maximum width of 79.4km, area 31500km2, a maximum depth of 1636.5 meters (5,369 feet) is the world's deepest lake. Qinglie Lake Baikal lake clarity, and a stable and transparent (transparency up to 40.8m), as in the world. The total water storage capacity of 23600km3, storage capacity equivalent to the sum of the Great Lakes in North America, accounting for the total global fresh water storage capacity of 1 / 5.

Lake Baikal is a life of more than 1700 kinds of wild plants and animals of the great ecosystems, of which two thirds of the species live only in Lake Baikal. The lake is completely surrounded by steep mountains and dense forests, these forests is estimated that 25-30 million years the original, making it the oldest geological history of lakes. Lake Baikal, there are many unsolved mysteries. For example, it is not interlinked with the ocean, but a lot of live marine organisms, such as seals, conch, fish and lobster; Baikal lake long tropical creatures, such as Lake Baikal, moss animals, insects, and its close relatives living in India on the lake Lane; Leech Lake Baikal freshwater lake in southern China in order to see; Lake Baikal clams son, only to survive in the Balkans, Oak Reed Lake. The most interesting and puzzling to scientists, the world's freshwater lakes, only Lake Baikal lake bushy \

However, people still do not understand, the water of Lake Baikal is not salty, why would so many live in the \In this regard, the world's most mysterious lake has not been an answer, attracting scientists from around the world.

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( Alas! some heartache, Lake Baikal and Issyk-Kul is our original ...)

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ten geological wonders

1, Utah and Arizona at the junction of the mysterious \evolved before the sand dunes. In less than 200 square meters of mountain gap, blood-red sandstone, such as waves, freshly and a wonderful combination of soft amazing. Along the lines touch the delicate sandstone marks the waves, as if you can feel the millions of years ago, well-designed and carved sandstorm.

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2, Arizona Antelope Canyon

- Antelope Canyon in Arizona, the most northern of about thirty kilometers from the town of Pec, the largest tribe in North America Navajo Indians who possessions. There used to be the habitat of wild antelope, wild antelope are often due to the valley named after infestation. Total length of 400 meters gorge, valley narrow the distance between the top sides, but from the top to the bottom of the valley is as high as ten vertical distance of several meters. Slit-type valley into two separate parts, that is, the upper and lower Antelope Canyon. Antelope Canyon, also known as the \Light is completely different depths of natural light through the reflection of the red rock crevice injection hole, so the light always changing, throughout the year, and even different times of day, different angle and the colors are different, from which, Zhensi into a colorful fantasy world, it is a lifetime.

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3, Honduras Blue Hole

- Belize City, 60 miles from the sea there is a place called \depth of 480 feet inside the cave is the end of the Ice Age formed as a limestone cave.

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4, the Mexican giant Shui Jingdong

- the hole in the Chihuahua desert, deep underground, the hole depth of 1,000 feet, everywhere inside the spectacular giant luminous pillars, a tall pine trees, all of translucent gold and silver. Wow amazing the shape of the crystal. Containing calcium sulfate crystals formed in the groundwater. As a mile underground magma, the constant heat in the magma under the ground water contains calcium sulfate from millions of years ago began to penetrate the caves, forming Shui Jingdong.

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5, Ireland's Giant's Causeway

- Giant's Causeway in Northern Ireland and north-east coast, it looks like a giant stone steps, called it \It is the product of an ancient volcanic eruption. These basalt columns at first glance like a square, in fact, most of them are hexagonal, but some are square, pentagonal or hexagonal. The maximum is about 12 meters. On the part of the solidified lava cliffs up to 28 meters thick. United Kingdom 2005 is listed as the fourth natural wonders.

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6,[link widoczny dla zalogowanych], eye Sahara in Mauritania

- in the Sahara desert southwest of Mauritania has a very impressive round landscape, 30 miles in diameter, which is known as \Initially it was thought that the formation of meteorites falling ground, but later geologists think that this is the ground product of uplift and erosion, as the causes of circular remains a mystery.