Interesting fact:

The Burj Khalifa was named after the ruler of Abu Dhabi and the King President of the United Arab Emirates, Khalifa bin Zayed Al Nahyan. The Burj Khalifa is not only the tallest building in the world, but it also holds the world record for: the tallest freestanding structure in the world, highest outdoor observation deck in the world, highest number of stories in the world, highest occupied floor in the world, elevator with longest travel distance in the world, and tallest service elevator in the world.