Burj Khalifa

The Burj Khalifa  known as the Burj Dubai before its inauguration, is a megatall skyscraper in DUBAI, United Arab Emirates.  With a total height of 829.8 m (2,722 ft) including the antenna    and a roof height of 828 m (2,717 ft), the Burj Khalifa is currently the tallest structure   in the world since  topping out in late 2008.