Sears Tower, at the top of the tallest building in Chicago, is now featuring a walk in the sky. Well, it’s more like venturing on onto a four-foot box of clear glass on its 103rd Floor Skydeck. If you’re brave enough to go, you can see the city in all of its glory 1,353 feet below you.

Chicago isn’t called the Windy City for nothing, so you can imagine how it will feel when you’re out there and the box begins to sway. There’s a similar, but much more way-out glass deck feature now available for tourist visitors at the Grand Canyon. So, if you’re tempted to step out on the transparent suicide ledge either at the Sears Tower in Chicago and/or the Grand Canyon, go ahead. You’re already old, so what do you have to lose?