Multiple choice general knowledge sports World's Tallest Building...... Burj Khalifa Taipei 101 Petronas Tower 1(Kuala Lumpur) International Commerce Centre Reveal answer Fill a bubble to check yourself A Correct answer Explanation Burj Khalifa in Dubai is the world's tallest building at 828 meters (2,717 feet). Taipei 101 was the tallest before Burj Khalifa's completion in 2010. Petronas Towers and International Commerce Centre are both significantly shorter.