The walkway was immediately evacuated without incident, and officials were brought in to assess the damage, ultimately determining that the structure's integrity wasn't compromised (as only one of the floor's three glass layers was broken). A similar incident occurred last year at the observation deck on Chicago's Willis Tower, although an open-air walkway on the side of a mountain's probably a bit scarier.
Oh, and the cause of the shattered panel? Simple: someone dropped a stainless steel mug on it. So, maybe go with a plastic cup next time? Or, better yet, just avoid glass-bottomed walkways altogether.
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Gianni Jaccoma is a staff writer for Thrillist, and he’s already scared of heights enough as it is. Follow his vertigo-laden tweets @gjaccoma, and send your news tips to firstname.lastname@example.org