The Khalifa Tor (Mean English: Burj Khalifa, Arabish: برج خليفة) is a newtocomely mickletall skyscraper in Richburgh, in the Oned Arab Headriches. Its building began on the 6th of Afteryule 2004 and took two days under six years to fulfill. With 156 floors and a full height of 2,722 feet, the Khalifa Tor has been the tallest building in the world since its topping out in late 2008. It opened at last on the 4th of Afteryule 2010 at the worth of 1.5 threefold thousand AR dollars. As a whole the building has 57 lifts and 8 quickstairs.