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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 ...
Fazlur Rahman Khan ( Bengali: ফজলুর রহমান খান, Fazlur Rôhman Khan; 3 April 1929 – 27 March 1982) was a Bangladeshi-American [ 3] structural engineer and architect, who initiated important structural systems for skyscrapers. [ 4][ 5][ 6] Considered the "father of tubular designs " for high-rises, [ 7] Khan was also a ...
Bruce John Graham (December 1, 1925 – March 6, 2010) was a Colombian-born Peruvian-American architect. 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 ...
1994 - Sears, Roebuck & Company sells the building to reduce its debt. 1996 - The Petronas Twin Towers surpass the Sears Tower in height to become the world’s tallest buildings at 1,483 feet each.
The Sears Tower is now officially the Willis Tower. Willis is a British-based insurance agency that bought the naming rights some months The iconic skyscraper that it once called home.
The building was used for mail order until 1992, when Sears closed the distribution center and sold the building. While Sears still operated a retail store on the ground floor until 2021, the rest of the enormous complex remained vacant. The 1,800,000-square-foot (170,000 m 2) complex has been the subject of several renovation proposals since ...
By Herbert Lash NEW YORK -- Blackstone Group (BX) agreed Monday to buy the Willis Tower, the former Sears Tower that for 25 years was the world's largest building, in a deal that features an ...
Revenue. $347 million (2021) Website. www .som .com. SOM, previously Skidmore, Owings & Merrill LLP, is a Chicago -based architectural, urban planning, and engineering firm. It was founded in 1936 by Louis Skidmore and Nathaniel Owings. In 1939, they were joined by engineer John O. Merrill.