Dubai has held the record for world’s tallest building since the opening of the Burj Khalifa in 2010.  The gigantic tower, which houses office, residential, retail, and hotel space spread over 163 floors stands 2,717 feet (828m) in the air.  It was an impressive feat, once in which Dubai and the United Arab Emirates pride themselves on, but in a few short years, its crown will be passed to a new record holder.