New York's Grand Central Terminal celebrated its 100th birthday last Friday and, to celebrate, delighted commuters and tourists with a surprise light show.
More than 100 Improv Everywhere participants, equipped with LED flashlights and camera flashes, dazzled on-lookers along three floors of the grand windows.
According to a company blog post, the project was part of Grand Central Terminal's centennial celebration. Improv Everywhere worked with the MTA Arts for Transit to make it happen.
If you couldn't make the impromptu show, you can watch the video above to witness some of the magic.
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