Crews Repair Coating on Skydeck's Ledge After Cracks Reported

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By NBC ChicagoCrews worked to repair a box of The Ledge, the 103rd floor tourist attraction atop Chicago’s Willis Tower, after cracks appeared underneath a group of tourists in what an official said was a coating designed to prevent scratches on the glass.

via NBC News Travel http://ift.tt/1k8uI6a