We’ve all heard the saying “the sky’s the limit” and maybe it truly is. The world’s first kilometre-high tower is currently being built in Saudi Arabia, planned to be finished by 2018. That’s 1001 metres. For comparisons sake, the Empire State Building stands 381 metres tall. The current tallest building in the world, the Burj Khalifa, stands 828 metres tall.
Named The Kingdom Tower, it will have 12 escalators and 59 elevators, some of which will be able to travel 36 kilometers per hour. Unusually large-scale buildings require an unusual amount of internal infrastructure. (See more)