View of the 88-story Petronas Twin Towers, the tallest buildings in the world, in downtown Kuala Lumpur, Malaysia, March 12, 2002. The towers, inspired by the Five Pillars of Islam, are the centerpiece of the ultra-modern Kuala Lumpur City Center (KLCC). (Photo by Chris Hondros/Getty Images)
World's tallest buildings
One World Trade Center became the tallest building in the Western Hemisphere when a silver spire topping the building was installed on Friday, May 10. Here's a look at the world's tallest buildings.