List of tallest buildings and structures
The world's tallest artificial structure is the 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
Various sources, including the building's owners, give the height of Taipei 101 as , roof height and top floor height as and . This lower figure is derived by measuring from the top of a platform at the base. CTBUH standards, though, include the height of the platform in calculating the overall height, as it represents part of the man-made structure and is above the level of the surrounding pavement. Taipei 101 displaced the Petronas Towers as the tallest building in the world by . The record it claimed for greatest height from ground to pinnacle was surpassed by the Burj Khalifa in Dubai, which is in height. Taipei 101's records for roof height and highest occupied floor briefly passed to the Shanghai World Financial Center in 2008, which in turn yielded these records as well to the Burj.