The world's tallest buildings

Published On: Mar 22 2012 11:13:22 AM CDT   Updated On: Nov 15 2013 12:57:54 AM CST

The Blackstone Group recently purchased Chicago's Willis Tower for $1.3 billion. See how the building stacks up against the world's tallest.

Burj Khalifa, Dubai, tallest building
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Titoni Thomas via WikiMedia

Burj Khalifa, also known as Burj Dubai or Dubai Tower in the United Arab Emirates, is the tallest building in the world at 2,717 feet tall.

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