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.
Guangzhou International Finance Center
Guangzhou International Finance Centre or Guangzhou West Tower, is a 103-storey, skyscraper at Zhujiang Avenue West in the Tianhe District of Guangzhou, Guangdong. One half of the Guangzhou Twin Towers, it is the 17th tallest building in the world, completed in 2010. As of March 2018, it is the world's tallest building with a roof-top helipad, at 439 m (1,439 feet) high. The world's second-tallest building with a roof-top helipad was also completed in 2010: Beijing's China World Trade Center Tower III, whose roof-top helipad is 330 m (1,083 feet) high. Both buildings are taller than the U.S. Bank Tower, the previous record-holder from 1989 to 2010, whose roof-top helipad is only 310.3 m (1,018 feet) high.