The world's tallest buildings

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

One World Trade Center in New York will now officially be the United States' tallest building when completed, beating out Chicago's Willis Tower. See how it stacks up to 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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