List of tallest buildings
The international non-profit organization Council on Tall Buildings and Urban Habitat (CTBUH) was formed in 1969 and announces the title of "The World's Tallest Building" and sets the standards by which buildings are measured. It maintains a list of the 100 tallest completed buildings in the world. The organization currently ranks Burj Khalifa in Dubai as the tallest at . The CTBUH only recognizes buildings that are complete however, and some buildings included within the lists in this article are not considered finished by the CTBUH.
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.