History of the world's tallest buildings
The tallest building in the world, as of 2022, is Burj Khalifa. The title of "world's tallest building" has been borne by various buildings, such as the Rouen Cathedral and the Empire State Building.
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.