Trip to Chicago anyone?

The Sears Tower recently opened up a new tourist feature that caught our eye... and we wanted to share. Apparently they added four glass bays for visitors to walk out on and see a unique view of the city. All of the walls, the roof, and, most notably, the floor is made of glass. Take a look:

http://www.suntimes.com/business/roeder/1646642,CST-FIN-roeder01.article#