Are you afraid of heights? Then you might want to avoid Chicago. The wind, combined with the tallest building in the country already seems like hell for anyone who suffers from acrophobia. Well that building, the Sears Tower, has taken it a bit further.

They’ve just opened “The Ledge,” glass floor balconies located on the building’s 103rd floor. They are 1,353 feet in the air and stick out four feet from the building. It’s like that scene in “Ferris Bueller’s Day Off,” but to the extreme.

Walking on “The Ledge” reportedly gives the visitor a sense of floating over Chicago. Plus it’s a great way to see the entire city, which is split down the middle by the Chicago River.

“The Sears Tower has always been about superlatives — tallest, largest, most iconic,” John Huston, one of the property owners of the Sears Tower, told the Associated Press. “Today is also about superlatives. Today, we present you with ‘the Ledge,’ the world’s most awesome view, the world’s most precipitous view, the view with the most wow in the world.”

More facts about the latest tourist attraction include that it can hold five tons and the glass is an inch-and-a-half thick.

Later this summer, the Sears Tower will change its name to the Willis Tower so, if you are heading to Chicago to check out the ledge, be careful with that Google search.