PHOTO: Wheelchair in The Ledge glass box at Skydeck Chicago Willis Tower. - Wheelchair Travel
Protective layer on The Ledge at Chicago's Willis Tower cracks as visitors stand on it | Fox News
Above the Clouds in the Willis Tower | Willis tower, Willis tower chicago, Chicago travel
Willis Tower's renovated Skydeck opens Friday, offering a unique Chicago experience for tourists and locals alike. Here's a sneak peek. – Chicago Tribune