No Pants Subway Rides Across America, 2015

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What started 14 years ago in New York has spread across the globe: The No Pants Subway Ride, started by social pranksters Improv Everywhere, again attempted to get as many people as possible to dispense with their pants while keeping a straight face on the city's public transportation lines. The No Pants ride went down in some 60 cities in 25 countries across the globe. Here's a look at those rides in New York, St. Louis, Minneapolis, Dallas, Phoenix, and Los Angeles.

See also:
2014: No Pants Subway Rides Across America