It’s 828 metres tall (2,717 feet). It was previously known as Burj Dubai. Burj means Tower in Arabic language. Building with most floors (160). Highest elevator installation. Fastest elevators at speed of 64km/h, or 18m/s. Burj Dubai has more than 162 floors.It took some 22 million man-hours to be completed. Total cost estimated at US$1.5 billion.