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Official site of the tallest building in North America, Willis Tower. Formerly known as Sears Tower, the building's 110 stories features 3.8 million square feet of ...
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A closer look at one of the most spectacular engineering projects of the 20th century and the world's second-tallest building.
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Official site of the observation deck on the 103rd floor of the Sears Tower. Includes general information for individuals and groups, building trivia, online ticket ...
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The Willis Tower (formerly named, and still commonly referred to as, the Sears Tower) is a 108- story, 1,451-foot (442 m) skyscraper in Chicago, Illinois. At the time ...
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Learn about the famed American skyscraper, Sears Tower, with polls and a guestbook regarding the Willis Tower name change protest.
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Sears Tower was the world's tallest building from 1973 to 1998.*
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At the time the Sears tower was constructed in 1974, it was the world's tallest building, eclipsing New York's twin-towered World Trade Center by 25 meter (83 ft).
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Skyscraper office building in Chicago . With 110 floors and a height of 1,450 ft (442 m), it became the world's tallest building at its completion in 1974. Its ...
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Commemorating the 35th anniversary since topping out of Sears Tower on May 3, 1973.
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