Share 'Scared of Heights? Introducing Sears Tower’s 1353-Foot High Glass Balconies'

Imagine being up 1,353 feet, on the 103rd floor of the Sears tower, and taking your first step onto the see-through floor of the Skydeck. With hearts beating like crazy, visitors say the first step is the hardest. "It's like walking on ice," said Margaret Kemp, of Bishop, California, "That first step you take — 'am I going down?'" "The Ledge," as the balconies have been nicknamed, opened to t...