Now days we witness huge skyscraper construction around us and the world tallest record is change after three four year but sits Its really funny to compare human build structures with natural mountain because of huge difference br br Tallest Buildings showing the video br Empire State building, New York, United States 448.7 m br Petronas Towers, Kuala Lumpur, Malaysia 452 m br Taipei 101,Taipei, Taiwan 509 m br Willis Tower, Chicago, United States, 527.3 m br CN Tower, Toronto, Canada 553.3 br KVLY-TV mast Blanchard, North Dakots, United States 628.8 m high and as per record it is the tallest radio mast in the world.