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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 new One World Trade Center began construction in 2006; in April 2012 it surpassed the Empire State Building to become the city's tallest. Upon its topping out in May 2013, the 1,776-foot (541 m) One World Trade Center surpassed the Willis Tower to become the tallest building in the United States and the Western Hemisphere.
Willis Tower † Chicago United States: 442.1 m (1,450 ft) 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. [6] [7] 4 111 West 57th Street: New York City
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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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
Chicago, Illinois (WGN) - The Willis Tower has a new owner. The Blackstone Group is a private real estate investment team. Blackstone Real Estate Partners VII agreed to pay $1.3 billion for the tower.
The amount of material used in the building's construction resulted in a very stiff structure when compared to other skyscrapers, with a structural stiffness of 42 pounds per square foot (2.0 kPa) versus the Willis Tower's 33 pounds per square foot (1.6 kPa) and the John Hancock Center's 26 pounds per square foot (1.2 kPa). [82]