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.
Jeddah Tower
The building has been scaled down from its initial (about one mile) proposal, which was never fully designed, to a height of at least (the exact height is being kept private while in development, similar to the Burj Khalifa). At about one kilometre, Jeddah Tower would still be by far the tallest building or structure in the world to date, standing taller than the Burj Khalifa in Dubai, United Arab Emirates.