World's Tallest Buildings
Tallest buildings in the world ranked by height to architectural top
Burj Khalifa      442 meters (1,451 feet)
Burj Khalifa , known as Burj Dubai prior to its inauguration, is a skyscraper in Dubai, United Arab Emirates, and is currently the tallest structure in the world, at . Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009
Abraj Al-Bait Towers      421 meters (1,380 feet)
The Abraj Al-Bait Towers, also known as the Mecca Royal Hotel Clock Tower, is a building complex in Mecca, Saudi Arabia. The complex holds several world records, including the tallest hotel in the world, the tallest clock tower in the world, the world's largest clock face, and the world's largest building floor area
Taipei 101      509 meters (1,474 feet)
Taipei 101 , formerly known as the Taipei World Financial Center, is a landmark skyscraper located in Xinyi District, Taipei, Taiwan. The building ranked officially as the world's tallest from 2004 until the opening of the Burj Khalifa in Dubai in 2010
Shanghai World Financial Center      415 meters (1,362 feet)
The most distinctive feature in the design of the building is an aperture at the peak. The original design specified a circular aperture, in diameter, to reduce the stresses of wind pressure, as well as serve as a subtext for the design, since "Chinese mythology represents the earth with a square and the sky with a circle"
International Commerce Centre      391 meters (1,283 feet)
The International Commerce Centre is a 108 floor, skyscraper completed in 2010 in West Kowloon, Hong Kong. It is a part of the Union Square project built on top of Kowloon Station. The development is owned and jointly developed by MTR Corporation Limited and Sun Hung Kai Properties, Hong Kong's metro operator and largest property developer respectively
Petronas Tower 2      452 meters (1,483 feet)
The Petronas Towers are skyscrapers and twin towers in Kuala Lumpur, Malaysia
Petronas Tower 1      452 meters (1,483 feet)
The Petronas Towers are skyscrapers and twin towers in Kuala Lumpur, Malaysia
Nanjing Greenland Financial Center      384 meters (1,260 feet)
The Nanjing Greenland Financial Center is a supertall skyscraper completed in April 2010 in Nanjing, China. The 89-story building comprises retail and office space in the lower section, and restaurants, a hotel, and a public observatory near the top
Willis Tower      381 meters (1,250 feet)
Sears' optimistic growth projections were not met. Competition from its traditional rivals continued, with new competition by retailing giants such as Kmart, Kohl's, and Wal-Mart. The fortunes of Sears & Roebuck declined in the 1970s as the company lost market share; its management grew more cautious. The Sears Tower was not the draw Sears had hoped it would be
Kingkey 100      374 meters (1,227 feet)
The Kingkey 100 , whose former name is Kingkey Finance Center Plaza, is a supertall skyscraper in Shenzhen, Guangdong province, China. It is located in Shenzhen's Luohu District in an area which can be described as the financial district.