Eiffel Tower

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FACTS ABOUT THE EIFFEL TOWER
Eiffel & Company completed the Eiffel Tower on March 31, 1889 for the Universal Exposition in Paris celebrating the centennial of the French Revolution. The project included 50 engineers and designers (who produced 5,300 blueprints), 100 ironworkers (who produced 18,038 individual pieces for assembly) and 121 construction workers (who used 2.5 million rivets). The Eiffel Tower took two years, two months and five days to complete. In addition to contractor Gustave Eiffel, the effort included engineers Maurice Koechlin and Emile Nouguier and architect Steven Sauvestre. The height of the Eiffel Tower with its flag was 1,022 feet (312 meters) when completed in 1889. The tower's weight is 10,000 tons, including 7,300 tons of metal framework. The Eiffel Tower is about twice as high as the Washington Monument, completed in 1884 and which was the tallest structure in the world at the time at 555 feet. The Eiffel tower remained the tallest structure in the world until 1930, when the Chrysler Building in New York was completed, topping out at 1,046 feet. Gustave Eiffel was known for his revolutionary bridge-building techniques, which formed the basis for the Eiffel Tower. One lightweight bridge built by Eiffel over a waterway in Europe supported a 4-ton, single-axle oxcart, deflecting, or bowing, less than 1 inch under the strain. In 2003 there were 6,103,978 visitors to the Eiffel Tower. The tower is repainted every five years with 50 tons of paint. There are 1,665 steps to the top level of the tower. Gustave Eiffel also designed the Statue of Liberty's iron framework.
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