The tallest building in the world

Burj Khalifa :
Located in Dubai and the length of the tower 828 meters, and consists of 163 floors and includes administrative and residential units and hotel.

Shanghai Tower :
Named the tallest skyscraper in 2015 and the second tallest building in the world, the tower is 632 meters long and consists of 128 floors with offices, hotels and retail stores.

Mecca Clock Tower :
Is the third tallest building in the world and rises 601 meters and has 120 floors. The big clock in the tower is 35 times bigger than the Big Ben in London.