Top 10 skyscrapers in the world
Updated: 2014-07-16 07:46 (chinadaily.com.cn)No 9 Willis Tower
Willis Tower, commonly called Sears Tower, is a 108-floor, 442.3-meter skyscraper in Chicago, Illinois, United States.
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A view of Willis Tower, formerly known as the Sears Tower, in downtown Chicago, May 14, 2010. [Photo/IC] |
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