Contruction continues on the supertall skyscraper the 'Burj Dubai' of the United Arab Emirates. As of April, 2009 work continues on the very upper portion of the US$4.1 billion tower. It currently stands as the tallest structure ever built in all of history when it topped out back in January 2009 at a height of 818m (2,684 ft). When completed in Septemeber 2009, It will have an estimated 160 habitable floors and approximately 3,595,100 sq ft of floor area.