No pants subway ride takes Boston: Photos

The annual No Pants Subway ride returned to Boston Sunday and with temps dipping into the high teens, it was a real knee knocker!

Thirty-one cities across the globe participated in theprank that began 16 years ago with seven people in New York City has grown into a global event with 31 participating cities. Started byImprov Everywhere, the event has no agenda “apart from a desire to make others laugh and smile.”