Soaring at 1,450 feet, Willis Tower (formally Sears Tower) is one of the world's tallest buildings. When you include the twin antenna towers, the building's height is at 1,730 feet. In fact, it owned the title of world's tallest building from the time it was built in 1974 until 1996. Malaysia's Kuala Lumpur has disputed that honor, but still, if you only count height in terms of highest roof, highest occupied floor and highest antenna, Sears Tower is still the tallest building in the face of the earth ...
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