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.
China World Trade Center Tower III
In 2010 the China World Trade Center Tower III took the title of "world's tallest building with a roof-top helipad" from the US Bank Tower. Its helipad is 330 m (1,083 feet) high compared to the US Bank Tower's helipad at 310.3 m (1,018 feet). As of Dec, 2018, China World Trade Center Tower III is the second tallest building with a roof-top helipad, with the tallest being the Guangzhou International Finance Center tower which is located in Guangzhou with a height of 439 m (1,439 feet) high.