Metro Orlando has a total of 71 completed skyscrapers. The majority are located in Downtown Orlando and the rest are located in the tourist district southwest of downtown. Skyscrapers built in downtown Orlando have not exceeded 441 ft (134 m) since 1988 when SunTrust Center was completed. There has never been an official reason why, but local architects speculate restrictions imposed by the Federal Aviation Administration, as the Orlando Executive Airport is located four miles (6 km) east of downtown Orlando.