Sears Tower To Unveil New Glass Ledge On 103rd Floor

CHICAGO — JULY 01: Sam Kane lays on the floor of the Ledge, a new glass cube that juts out from the 103rd floor Skydeck of the Sears Tower, during a media preview July 1, 2009 in Chicago, Illinois. The 1,353 foot high observatory will open to the public tomorrow. (Photo by Scott Olson/Getty Images)