Willis Tower | |
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Height | 527m |
Floors | 108 |
Year | 1974 |
City | Chicago |
The Willis Tower (formerly and informally: Sears Tower, its title until 2009) is a 110-story, 1,450-foot (442.1 m) skyscraper in Chicago. At completion in 1973, it surpassed the World Trade Center in New York City to become the tallest building in the world, a title that it held for nearly 25 years; it was also the tallest building in the Western Hemisphere for 41 years, before the new One World Trade Center surpassed it in 2013. While it held the title of'Tallest Office Building' before 2013, it dropped the title of'Tallest Man-Made Construction' after only 3 decades. The CN Tower in Toronto, which functions as a communications tower, took over the title in 1976.
The Willis Tower is considered a seminal accomplishment for engineer Fazlur Rahman Khan. It is currently the third-tallest construction in the USA and the Western hemisphere -- and the 23rd-tallest in the world.
Centro de Comercio Internacional | |
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Height | 192m |
Floors | 50 |
Year | 1977 |
City | Bogotà |
Centro de Comercio Internacional is an office skyscraper located in Bogotá, Colombia. The construction is 190m/623 ft, 50 floors. The construction is another neighbor of the second largest skyscraper in Colombia, Torre Colpatria. Located inside this construction are some of the offices of Davivienda Bank which recently obtained the rights of this construction. When it was built, it was known as Centro Las Americas.
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