Frozen Grand Central is art.

I found this video on www.ImprovEverywhere.com, where over 200 people freeze in place on cue in Grand Central Station in New York. Amazing art idea. I read that this group did already 70 different missions in New York City. Others include the No Pants Subway Ride, the Best Buy uniform prank, and the famous U2 Rooftop Hoax, to name a few.