Glass Cracks Below Tourists in Chicago Skydeck — mashable.com

In what could have been a nightmare come true, part of the glass floor in a viewing box high above Chicago cracked right below a group of California tourists. But it was apparently much less of a problem than it might have seemed. Alejandro Garibay and his family were taking in the sights at Chicago's Willis Tower on Wednesday night. The tower's Skydeck, which opened in 2009, is on the 103rd floor, about 1,353 feet above Chicago's downtown.

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