Burj Khalifa, Dubai

At 829.84m (2,723 ft), the Burj Khalifa is the tallest building in the world. However, plans are underway to construct an even higher building in Jeddah, Saudi Arabia. If completed, that structure will be the first in the world to surpass the 1km (3,280ft) mark. At 829.84m (2,723 ft), the Burj Khalifa is the tallest building in the world. However, plans are underway to construct an even higher building in Jeddah, Saudi Arabia. If completed, that structure will be the first in the world to surpass the 1km (3,280ft) mark. Photo and caption by Sandra Leduc. link