Impossible possible! What are some of the 25 greatest building inventories in human history that can be guessed in China?

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Do you know of any giant, daring buildings in the world? How can these "impossible" buildings magically become possible? Follow CNN into 25 of the greatest buildings in the history of mankind .....

Palm Island (Dubai)

Palm Island is stacked with 100 million cubic metres of rock and sand. A total of 210 million cubic metres of rock, sand and limestone were dug up to rebuild the islands, with only 10 million cubic metres of rock on the outer ring. The rocks were transported from 16 quarrying plants distributed throughout the United Arab Emirates, enough to build a wall around the Earth's three-circle. The time for completion of the island is September 24, 2008.

Serbian Waterway (Spain)

The waterway is the most well-preserved monument on the Iberian Pen.. It is characterized by the 44 double Bridge Arch (the individual number is 88), and 79 single arches, a total of 167. It was built in the true age of Romatura and has been used so far to bring Ofrio water to Segovia Town. The bridge is made up of 24,000 granite and is erected without the use of lime at all. Each of the 167-bridge arches is 9 meters above each other. The waterway was built in 50 A.D.

30,000 Li Great Wall (China)

The Great Wall is 8,850-kilometer, and it takes up to 2000 years. It was founded in 475 BC. In the Ming Dynasty (A.D. 1368--1644 years), the Great Wall of the great transformation, the new watchtower, battlements, artillery, some above sea-horizon up to 980 meters, can not imagine the glue used for sticking stones is glutinous rice powder. Completion time is 204 BC.

Taj Mahal (

, India)

It is used to decorate the Taj Mahal with as many as 28 kinds of precious and precious stones. The construction of the Taj Mahal took 20 years, starting in 1632 and ending in 1653, but the exact date is unknown. Built from the white marble of the Rajasthan Quarry, the building was pink in the morning, white in day and golden in the moonlight. In any direction, it is symmetrical. This mausoleum commemorates the Imperial Emperor Shah's favorite princess of the Mughal period. Completed in 1653.

Trans-Siberian Railway (Russia)

The Trans-Siberian Railroad connects the Moscow River, the east of Moscow with Japan, China and Mongolia, and East Siberia is difficult to cross, making the 8851-metre-long Siberian railroad so admirable. The designer must make sure that it works well at temperatures below minus 25. The railway spans 8 time zones, 87 towns and 16 major rivers (including the Volga, OB, Yenisei, Oka, Amur). More than 90,000 people participated in the construction, taking 10 years. The building was breathtaking, given the inefficient tools available to workers at the time, such as shovels, rakes and wheelbarrow. The railway was completed in 1904.

Khalifa (UAE country Dubai)

Khalifa as high as 828 meters, is the world's tallest building and the world's tallest structure without support. Engineers face a wide range of challenges, one of which is a fierce shot at the tower of the wind. They carried out more than 40 wind tunnel tests, not only to determine the impact of wind on the building, but also to test the construction of the crane. Khalifa was built on January 4, 2010.

Akashi-kaikyo Bridge (Japan)

The Akashi-kaikyo Bridge, with 2 million workers, took 10 years to complete. It connects the rocky valleys of Japan's continental city of Kobe and Awaji. Before the bridge was built, the only way to reach two cities was by ferry. However, the waterway often suffered a major storm, the 1955 two ferry overturned, killing 168 people, in order to calm the public anger, the government decided to build the bridge. It is 1991 metres long and is the world's longest suspension bridge, completed on April 5, 1998.

White Pass and Yukon Main Line Railway (Canada)

It was built in the era of the krona Gold rush, mainly funded by British investors. The "Gold rail" took 26 months, using 450 tons of dynamite to blast off Canada's coastal mountains. Passers-by should only hold on, because at 32-kilometer of the horizontal distance, it rose to a height of 278 meters, and there are many gradient to 4% places, it can be seen how steep, how dangerous. By 1881, the railway was still a classic car. Completion date is July 29, 1900.

Tokyo Sky Tree (Japan)

The core reinforced column of the Tokyo Sky Tree distinguishes itself from the surrounding steel structure, incorporating a seismic design similar to that of a Buddhist temple. If the company responsible for the design is also responsible for building the space elevator, we think the radio tower can exist for many years, but in the earthquake-prone areas of Japan to build Tokyo sky trees, engineers are indeed in the sky to launch a sprint. The tower was built on a very unstable land, but the designer used the traditional Japanese construction technique-the heart pillar. This technique relies on a central column to counteract seismic waves, greatly reducing the shaking of the towers. Completion date is May 22, 2012.

International Space Station

The construction of the International Space Station will cost 100 billion dollars (about 610 billion yuan), with 100,000 people from 15 countries involved. It is the most unusual building, built 354-kilometer far from the earth. Maintaining the problems it faces is far from being solved by a hammer and a screw. A tiny crack in a space suit means instant death. The space station is still under construction.

Teotihuacan ancient Ruins (Mexico)

In the Aztec language, Teotihuacan means "where people become gods." It was the largest city in the Americas during the pre-Columbian period, the most famous of which was the pyramid of the Sun, built in two stages. The second stage of the construction of its height reached 224 meters, the world's third highest pyramid. The city began with an area of 20 square kilometres, which gathered 2200 buildings built of stone and lime. It was built in 100 BC.

Panama Canal (Panama)

More than 4.5 million yards (1350 feet) of mixed soil are used to build the canal's locks and dams. The Panama Canal is a 77-kilometer-year waterway connecting the Atlantic and Pacific oceans. The rubble from the canal was built enough to bury Manhattan and reach 4 meters thick. A series of locks control the flow, weighing 750 tonnes per gate, each containing 52 million gallons (about 197,000 cubic meters) of water, enough to accommodate the 15,000 vessels that travel each year. The time of completion is January 7, 1914.

Taipei 101 Building (Taiwan, China)

The Taipei 101 Building is the world's first building with more than 500 meters. As soon as it was completed, it had a few of the world's biggest titles, the fastest elevator in the world, the tallest building in the world, and its spire, the highest in the world. 8 steel pillars make them have super earthquake resistance. It was completed on December 31, 2004.

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