what country has the tallest building in the world
List of tallest buildings and structures The world's tallest artificial structure is the 829.8 m (2,722 ft) tall Burj Khalifa in Dubai (of the United Arab Emirates). The building gained the official title of "Tallest Building in the World" and the tallest self supported structure at its opening on January 9, 2010. The second tallest self-supporting structure and the tallest tower is the Tokyo Skytree. The tallest guyed structure is the KVLY-TV mast.
Taipei 101 Taipei 101 comprises 101 floors above ground, as well as 5 basement levels. It was not only the first building in the world to break the half-kilometer mark in height,[3] but also the world's tallest building from March 2004 to 10 March 2010.[15][16] As of 28 July 2011[update], it is still the world's largest and highest-use green building.[11][12]