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About Burj khalifa  Dubai's Burj Khalifa was formerly known as the Burj Dubai before its inauguration in 2010. At 829.8 meters (2,722 feet, a little over half a mile) in height, and with a roof height (including a 244 meter spire) of 828 meters (2,717 feet), this has been the world's tallest structure and building since it was completed in 2009, surpassing Taipei 101 in the standings. The exterior of the Burj Khalifa was completed in 2009, five years after its con …