Getty

Getty

Standing on the 103rd floor of the Willis Tower staring down on the world when the glass cracks, “that’s a scary sight.”

According to NBC, a California family stepped out onto the Skydeck late last night—only to hear a cracking sound and see the glass under their feet fragmenting. “I walked them over so they could see and they were totally shocked and asked us to step away and then proceeded to start calling staff and techs,” one of the tourists told the news channel.

Getty

Getty

If you’ve ever seen pictures from the top of the tower then you understand how insane that must’ve been when you heard that crack!

Read more about the story including theories as to why it cracked here 

Source: Gizmodo