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
This proposed tower, formerly known as the Kingdom Tower, is being built in Jeddah by Prince Al-Waleed bin Talal and will stand tall. Upon its completion, it will be the tallest skyscraper in the world. The building has been scaled down from its initial proposal, since the ground proved unsuitable for a building that tall, to a height of at least (the exact height is being kept private while in development, similar to the Burj Khalifa), which, at about one kilometre (), would still make it by far the tallest building or structure in the world to date, standing at least taller than the Burj Khalifa in Dubai. Construction began in April 2013 and is scheduled for completion in 2019.