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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.
The tallest building in the city is the 110-story Willis Tower (also known as the Sears Tower), which rises 1,451 feet (442 m) in the Chicago Loop and was completed in 1974. [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]
Lowest level - 43 feet below Franklin St. Building size - 4.5 million gross square feet. ... March 9, 2020 - Willis Tower Watson announces an agreement to combine with Aon plc. The new company ...
Stephen Greenwood Chicago's architecture is world famous, and while a river cruise is the best way to take in all of the structural details of the skyline, the observation deck of the Willis Tower ...
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.
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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