World's 15 Tallest Buildings [PHOTOS]

Dubais New Rules
Car dealers are doing what they can to address the U.A.E's new regulations. REUTERS/Matthias Seifert
Saudi billionaire Prince Alwaleed speaks during a news conference in Riyadh
Saudi billionaire Prince Alwaleed bin Talal speaks near a model of the world's tallest tower during a news conference in Riyadh August 2, 2011. Prince Alwaleed unveiled plans on Tuesday to build the world's tallest tower in the Red Sea port city of Jeddah, signing a 4.6 billion riyal ($1.23 billion) contract with Bin Laden Group. Reuters
7 The Nanjing Greenland Center, scheduled for completion in 2009, is already the seventh tallest.
7: The Nanjing Greenland Center, scheduled for completion in 2009, is already the seventh tallest. Reuters
An artist039s impression of the International Commerce Centre in Hong Kong.
4: Hong Kong's International Commerce Center (L) is fourth. Reuters
A Birds Eye View of the Worlds Most Tall Buildings
An aerial view of Malaysia's landmark 88-storey, 452-metre Petronas Twin Towers and the 421-metre Kuala Lumpur Tower. REUTERS/Bazuki Muhammad
A Birds Eye View of the Worlds Most Tall Buildings
Taipei 101 towers over Taipei's skyline. The Taipei 101 in Taiwan is the second tallest. Reuters
A Birds Eye View of the Worlds Most Tall Buildings
A view shows downtown Shanghai and the Huangpu River from the Shanghai World Financial Center. The Shanghai World Financial Center is the third most tall building in the world. REUTERS/China Daily