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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 ...
The Willis Building was constructed between 2004 and 2008 under the management of Mace [3] and represented a significant addition to the City of London skyline at the time, becoming its fourth-tallest building after Tower 42, 30 St Mary Axe and CityPoint. The core was topped out in July 2006 and the steelwork completed in September that year.
February 1, 2017 - Blackstone Group unveils its plans for $500 million in tower renovations, ... March 9, 2020 - Willis Tower Watson announces an agreement to combine with Aon plc. The new company ...
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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.
Graham built buildings all over the world and was deeply involved with evolving the Burnham Plan of Chicago. Among his most notable buildings are the Inland Steel Building, the Willis Tower (formerly the Sears Tower), and the John Hancock Center. [1] He was also responsible for planning the Broadgate and Canary Wharf developments in London. [2 ...
The observatory (360 Chicago), [11] which competes with the Willis Tower's Skydeck, has a 360° view of the city, up to four states, and a distance of over 80 miles (130 km). 360 Chicago is home to TILT, a moving platform that leans visitors over the edge of the skyscraper to a 30-degree angle, [12] a full bar with local selections, [13 ...
During its existence, the World Trade Center symbolized globalization and the economic prosperity of the U.S. [12] Although its design was initially criticized by New Yorkers and architectural critics, [13] the Twin Towers became an icon of New York City. [14] It had a major role in popular culture, and according to one estimate was depicted in ...