Burj Khalifa, formerly called Burj Dubai, is a skyscraper in Dubai,United Arab Emirates which was inaugurated on January 4, 2010. The height of this skyscraper is 828 meters (2,717 feet). Burj Khalifa is the tallest building in the world ever made by humans . Starting from passing the heights of Taipei 101 as the tallest building in the world on July 21, 2007.
On September 12, 2007, the Burj Khalifa successfully crossed the height of CN Tower as the world's tallest free (no buffer) structure and on 7 April 2008 the world's tallest structure from the KVLY-TV Tower in Blanchard, North Dakota, . The tallest structure ever made by humans, the Warsaw Radio Tower 645.4m (2,120ft) was made in 1974 (but collapsed during a renovation in 1991) was passed on 1 September 2008.
