Burj Khalifa is the tallest building in the world, standing at an incredible 828 metres tall (2717 feet) it towers above Dubai, UAE. It includes 160 floors and was officially opened in 2010. This photo of Burj Khalifa is set against a blue sky and taken from a distance to make it possible to include the giant structure from top to bottom. For more information on amazing buildings, check out our list of the top ten tallest buildings in the world.