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.
Shanghai Tower
The Shanghai Tower () is a , 128-story megatall skyscraper in Lujiazui, Pudong, Shanghai. It shares the record (along with the Ping An Finance Center) of having the world's highest observation deck within a building or structure at 562 m, and the 2nd world's fastest elevators at a top speed of . It is the world's second-tallest building by height to architectural top. However, the title of the world's fastest elevator now belongs to the Guangzhou CTF Finance Centre, with a top speed of achieved in 2017.