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  1. britannica.com

    Willis Tower is a skyscraper in Chicago, located at 233 South Wacker Drive, that is one of the world's tallest buildings. ... Built for Sears, Roebuck and Company, the structure, now called Willis Tower, reaches 108 floors and a height of 1,451 feet (442 meters), excluding broadcast antennas and their supports. It provides more than 3.8 ...
  2. theskydeck.com

    Willis Tower is the third tallest building in the Western Hemisphere, standing 1,450 feet and 110 stories tall. Learn more about its history, design, attractions and views at The Skydeck, where you can stand on The Ledge, a glass-floor observation box 1,353 feet up.
  3. art-facts.com

    The Willis Tower has an architectural height of 1,450 feet (442 meters). 14. The height to the tip is 1,729 feet (527 meters). 15. The tower has a total of 110 floors and the top floor is located at a height of 1,354 feet (413 meters). 16. Construction of the tower started in 1970 and was completed in May 1973.
  4. simple.wikipedia.org

    The Willis Tower, formerly known as the Sears Tower, is a 108-story, 1,450-foot (442.1 m) ... The tower passed the height of New York's unfinished World Trade Center to become the world's tallest building. [23] The height was limited by the Federal Aviation Administration ...
  5. willistower.com

    Formerly known as the Sears Tower, Willis Tower has been an iconic part of the Chicago skyline since 1973. At 110 stories high, Willis Tower is also one of the largest skyscrapers in the world. In 2017, Willis Tower underwent a massive transformation to be reimagined for the future of work. Today, Willis Tower is a welcoming anchor in the heart ...
  6. architecture.org

    Willis Tower soars to a height that was limited by the Federal Aviation Authority at the time of its construction. Did you know? When Sears first occupied the building, their merchandising department utilized the first 50 floors. The massive floor plates enabled employee interaction with limited elevator travel.

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    Willis Tower

    Skyscraper in Chicago, Illinois
    willistower.com

    The Willis Tower, originally and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot 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, it opened in 1973 as the world's tallest building, a title that it held for nearly 25 years. It is the third-tallest building in the Western Hemisphere, as well as the 23rd-tallest in the world. Each year, more than 1.7 million people visit the Skydeck observation deck, the highest in the United States, making it one of Chicago's most popular tourist destinations. The building occupies a site bound by Franklin Street, Jackson Boulevard, Wacker Drive, and Adams Street. Graham and Khan designed the building as nine square "tubes", clustered in a 3×3 matrix; seven of the tubes set back at upper floors. Wikipedia

    Former namesSears Tower (1973–2009)
    Preceded byWorld Trade Center
    Surpassed byPetronas Towers
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