Standing at 2,717 feet (828m), the Burj Khalifa is the tallest building in the world and the centerpiece of Downtown Dubai, UAE. The 163-floor structure overlooks the Dubai Fountain, the sprawling Dubai Mall, the Dubai Opera and other tourist attractions. Its design is an abstraction of the Hymenocallis, a type of desert flower that has long petals extending from its center.—25.197139°, 55.274111°