Do you trust that the things that get built get built right? Lots of people going to Chicago’s Sears Tower apparently do. The Ledge just opened on the 103rd floor, where visitors can step out onto a 4′ glass floored and walled projection. Looking 1300′ straight down, visitors get a view never before seen.

The Ledge uses 3 layers of 1/2″ glass and is designed to carry a 5 ton live load, apparently more load than the engineers figure could possibly be applied by people cramming into the space. Hey what’s the worst that could happen?