My mother-in-law Sherry Keith sent me a link to this video below where a group of over 200 people gathered at Grand Central Station in New York to pull off a 'frozen in place' act. This group's name is called Improv Everywhere and they stage these type of pranks all over New York City.
This video is crazy, check out the reactions from the unsuspecting onlookers! So cool!
You can click on this link to view more videos from Improv Everywhere.