28/03/2017 5:35 AM AEDT | Updated 06/04/2017 8:35 AM AEST

This Terrifying Glass 'Ledgewalk' Is Not For The Faint Of Heart

If Skyslides and drop rides make you gulp, then you won’t want to see this.

The owners of Chicago’s Willis Tower are mulling over plans for Ledgewalk, an outdoor climbing attraction that would be built on the skyscraper’s 102nd floor.

Ledgewalk is described as an “open air glass ledge in which thrill seekers can walk the exterior of the building while secured by state-of-the-art harness and climbing systems” in a report by Morningstar Credit Ratings. And it’s giving us the scaredy-cat shivers just looking at the renderings. 

Morningstar Credit Ratings
A rendering of Ledgewalk shows visitors walking on the edge of Willis Tower. 

Willis Tower, formerly called Sears Tower, is the second-tallest building in the U.S. Other skyscrapers like it have recently installed attractions similar to Ledgewalk in efforts to woo visitors, perhaps based on the success of the famous glass “Skydeck” that already draws tourists to Willis Tower’s existing observation deck. 

But timid travelers can breathe easy, at least for now: There are no firm plans to build Ledgewalk at Willis Tower just yet, according to the tower’s owner Blackstone Group.

“Any discussions about potential changes to the Observation Deck are in a preliminary stage,” spokeswoman Paula Chirhart told HuffPost.

The city of Chicago would need to approve plans for Ledgewalk before construction could begin, the Morningstar report added.

The attraction is a possible part of larger renovation plans for Willis Tower that may also include a rappelling station where visitors can rappel from the 103rd floor to the 102nd floor in a glass box on the outside of the building, a rooftop event space and more retail and dining options on the building’s lower floors.

Morningstar Credit Ratings
A rendering shows an outdoor market in the tower's outdoor event space.

Looks grand, indeed. We’ll stay tuned for updates and book our flights to Chicago soon.