The Subway Spa August 06 2014
"Improv Everywhere is a New York City-based prank collective that causes scenes of chaos and joy in public places. Created in August of 2001 by Charlie Todd, Improv Everywhere has executed over 100missions involving tens of thousands of undercover agents."
None of New York's subway stations are air conditioned and the temperature on the platform sometimes exceeds the one in a real sauna. For their latest mission a subway station at the 34th Street was turned into a spa. But take a look yourself.
A video and future and past missions can be found here