The world's tallest buildings

POSTED: 10:13 AM Mar 22 2012   UPDATED: 11:57 PM Nov 14 2013

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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