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Timeline. 1970 - Construction begins. 1973 - Construction is completed and the building opens to the public. ... March 9, 2020 - Willis Tower Watson announces an agreement to combine with Aon plc ...
The Willis Tower, originally and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot (442.3 m) skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM), it opened in 1973 as the world's tallest ...
Willis Tower, the tallest building in Chicago. The buildings and architecture of Chicago reflect the city's history and multicultural heritage, featuring prominent buildings in a variety of styles. Most structures downtown were destroyed by the Great Chicago Fire in 1871 (an exception being the Water Tower). [1]
At the time, the Willis Tower held first place in the second and third categories, the Petronas Towers held the first category, and the original WTC North Tower held the fourth (height to tip) category with its antenna. [19] In 2000, however, a new antenna mast was placed on the Willis Tower, giving it the record in the fourth category.
Willis Tower † Chicago: United States 442.1 (1,451) 110 1974 Formerly known, and still commonly referred to, as the Sears Tower. It was the tallest building in the world from 1974 until 1998. It is the third-tallest building in the Western Hemisphere and the 26th-tallest building in the world. [7] [8] 4 111 West 57th Street: New York City ...
Willis secured the naming rights effective July 2009 as part of its agreement to lease 140,000 square feet (13,000 m 2) of space in the 3,800,000-square-foot (350,000 m 2) tower. [29] It is the tallest building in the U.S. and was the tallest building in the world from 1974 until 1998, when it was surpassed by the Petronas Towers in Kuala ...
Also known as the Nordstrom Tower. At 1,550 feet, the tower is the tallest residential building in the world both by roof height and architectural height. [9] [10] Topped out in September 2019. [11] It is the tallest building outside Asia by roof height. Tallest building constructed in the United States in the 2020s. Willis Tower † Chicago
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