Malaysia: Kuala Lumpur. The Petronas Twin Towers (or Petronas Towers), in Kuala Lumpur, Malaysia, were once the world’s tallest buildings, and are still the tallest twin towers in the world. Standing at 1483 feet (452 m) tall, the towers accommodate 88 stories, and a floor area more than 4.25 million sq. ft. (395,000 sq. m.), requiring 78 elevators.