Nude cyclers celebrate World Naked Bike Ride

Cyclists wore helmets, but not much else, over the weekend to mark World Naked Bike Ride in cities around the globe. Many of the events were used to protest for environmental and public health issues.

In this photo, nude bikers in Lima, Peru participate in a protest to demand more bicycle paths in the city and more respect from motorists, March 9, 2013.

Credit: Ernesto Benavides/AFP/Getty Images