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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 ...
Fazlur Rahman Khan. 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 ...
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–Harvard Observatory is a historic astronomical observatory that is part of Harvard Observatory and is located at 60 Garden Street in Cambridge, Massachusetts. Now just a portion of the observatory's Building A, the Sears Tower is the oldest portion of the complex, designed by Isaiah Rogers and constructed in 1843.
The Sears, Roebuck and Company Complex is a building complex in the community area of North Lawndale in Chicago, Illinois. The complex hosted most of department-store chain Sears ' mail order operations between 1906 and 1993, and it also served as Sears' corporate headquarters until 1973, when the Sears Tower was completed.
The second-tallest structure in the world is the 679-metre-tall (2,227 ft) Merdeka 118 in Kuala Lumpur, Malaysia, while the third-tallest self-supporting structure and the tallest tower in the world is the Tokyo Skytree (634 m or 2,080 ft). The tallest guyed structure is the KRDK-TV mast in North Dakota, U.S. at 630 metres (2,060 ft).
(The highest point is the Willis Tower, formerly known as the Sears Tower.) The top of the hill is about 0.25 miles (400 m) from the Wisconsin border. It is within the Driftless Area, a region of Illinois, Iowa, Minnesota, and Wisconsin that was not covered or ground down by the last continental glaciers. The hill itself is an erosional remnant ...