1. Burj Khalifa in Dubai, United Arab Emirates
Built in 2010 with 162 stories and reaching 2,717 feet, this is the tallest building in the world, at least until the new Kingdom Tower rises in Saudi Arabia. Burj Khalifa sits in downtown Dubai and boasts an observation deck, offices, apartments, and the Armani Hotel. This building also holds the records for tallest free-standing structure in the world, highest number of stories in the world, highest occupied floor in the world, highest outdoor observation deck in the world, elevator with the longest travel distance in the world and tallest service elevator in the world.