Twin Towers in Kuala Lumpur in Malaysia were completed in 1998. Each tower is 452 meters high and has 88 floors. Designed to serve all floors, the four executive elevators in each tower transport passengers from the basement car park to the top floor in 90 seconds. The towers are joined 170 meters up by a two-level bridge on the 41st and 42nd floors. a If you combined the two towers into one building, one on top of the other, how tall would it be?