Top 10 observatories in the world
Updated: 2014-05-26 07:28 (chinadaily.com.cn)3 Skydeck at Sears Tower, Chicago, Illinois, US
The glass balcony is suspended 1,353 feet (412 meters) in the air and juts out 4 feet (1.22 meters) from the Sears Tower's 103rd floor Skydeck. Visitors can see four US states on a clear day. The glass floor on the balcony is 12.7 cm thick and can bear a load of about five tons.
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Anna Kane, 5, of Alton, Ill, looks down from "The Ledge," at the Sears Tower in Chicago, on June 24, 2009 .[Photo/dfic.cn] |
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