The Eiffel Tower was built by George Eiffel's company. The Eiffel Tower was largely designed by one of Eiffel's employees, Maurice Koechlin, a structural engineer. The Eiffel Tower was built as a monument for the 1889 World's Fair.
Paris hosted the World's Fair in 1889 to mark the 100th anniversary of the French Revolution. The tower was built on the Champ de Mars to be the entrance for the fair. The Eiffel Tower was built with the intention of only being a temporary exhibit and came close to being torn down in 1909. However, the Eiffel Tower was kept standing when Paris city officials noticed that the tower was valuable as a radiotelegraph station.Learn More
Big Ben was built as part of a design decision in 1844 that the new Houses of Parliament should include a tower and a clock. The rebuilding of the Houses of Parliament was necessary after a fire in 1834 destroyed the old Palace of Westminster.Full Answer >
Viaducts are types of bridges; the term “viaduct” refers to long bridges or series of bridges that are connected to one another or structurally supported by arches or sturdy platforms between two end towers. As with bridges, viaducts may cross waterways or roadways, and exist primarily to provide an overhead passage to move trucks, cars, trains and pedestrians from one point to another.Full Answer >
The Taj Majal was primarily made of white marble and red sandstone. Other construction materials used for the world-famous Indian monument include gray and yellow sandstone, black slate, different kinds of bricks, sweet limestone, reed glue and red clay. Molasses, curd, jute and fossilized soil were mixed with lime to serve as mortar and cementing material for the building.Full Answer >
As of 2014, The Great Wall of China is the largest man-made structure on Earth, stretching over 4,000 miles from the Shanghai Pass to the Bohai Sea. The Great Wall started as individual walls built over several dynasties, but over the centuries, the walls were thickened and joined to form the Great Wall.Full Answer >