Chicago has no shortage of things to do, but this one definitely stands out. Willis Tower, formerly known as Sears Tower, is the tallest building in the Western Hemisphere at 1,353 feet. On a clear day you can see four different states from the top. At the 103rd floor is the Skydeck featuring The Ledge. The Ledge is a glass box that sticks out 4.3 feet from the building. As someone who is not a fan of heights, it is not for the faint of heart. I had the nerve to step out and take a couple of pictures, but that was it for me. As you can see on their website, some people are much more adventurous. The trip up, including The Ledge runs about $30 per ticket.