The city state Singapore locked over 4.300 multistoried buildings, from which most rule in the city center. In the city there are 49 multistoried buildings, which rise more highly than 140 meters (459 ft). Three buildings divide the titles of the highest building into Singapore: United Overseas bank Plaza One, Republic Plaza and Overseas Union Bank Centre. The three towers, those together the title 70. highest buildings of the world, are in each case 280 m (919 ft) highly. There is an elevator delimitation of 280 meters (919 ft) for structures in the central business quarter of Singapore because of the proximity Singapore of the Changi airport.