Looks like the owner of Willis Tower has some new plans for the skydeck.
A $20 million project is being put in place to spruce up the attraction and one idea is to have a glass box that visitors can rappel down. Can you imaging rappelling down from the 103rd to the 102nd floor?
Another idea is having an open ledge for visitors to walk along on the 102nd floor... harnessed of course... but HOW SCARY?!!
Read more about the new plans HERE.