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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 ...
[2] [3] Sears Tower was the tallest building in the world upon its completion, and remained the tallest building in the United States until May 10, 2013. [4] The second, third, and fourth-tallest buildings in Chicago are the Trump International Hotel & Tower, St Regis Chicago, and the Aon Center, respectively. Of the ten tallest buildings in ...
July 2009 - The Sears Tower is officially renamed Willis Tower. The same month, an attraction called the Ledge opens on the 103rd floor, with glass balconies and a view down 1,353 feet to the ...
The North Tower (1 WTC) stood at 1,368 feet (417 m), while the South Tower (2 WTC) was 1,362 feet (415 m) tall, then surpassed only by the Willis Tower at 1,450 feet (442 m). If they were still standing today, they would occupy the seventh and eighth positions on the list below, with their replacement—the new One World Trade Center—being ...
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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.
An agreement was reached for United Continental Holdings to lease an additional 200,000 square feet (19,000 m 2) at Chicago's Willis Tower, joining the airline's operations center which leased an initial 470,000 square feet (44,000 m 2) in 2010. The company vacated the majority of their offices at 77 W. Wacker with the naming future of the ...
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