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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.
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Cyclists protest in a naked bike ride to demand more bicycle paths in the city and more respect from motorists, Lima, Peru, March 9, 2013.
Ernesto Benavides/AFP/Getty Images
Cyclists protest in a naked bike ride to demand more bicycle paths in the city and more respect from motorists, Lima, Peru, March 9, 2013.
Ernesto Benavides/AFP/Getty Images
Cyclists protest in a naked bike ride to demand more bicycle paths in the city and more respect from motorists, Lima, Peru, March 9, 2013.
Yasuyoshi Chiba/AFP/Getty Images
Cyclists prepare for the start of the 6th "Naked Pedalling," an annual cycling event in Sao Paulo, Brazil, March 9, 2013. The event welcomes naked cyclists to celebrate cycling and the human body and protest against cars, gas emission and aggressive drivers.
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A cyclist waits for the start of the 6th annual "Naked Pedaling," in Sao Paulo, Brazil, March 9, 2013.
Yasuyoshi Chiba/AFP/Getty Images
Nude cyclists take part in the 6th annual "Naked Pedaling," in Sao Paulo, Brazil, March 9, 2013.
Yasuyoshi Chiba/AFP/Getty Images
A cyclist waits for the start of the 6th annual "Naked Pedaling," in Sao Paulo, Brazil, March 9, 2013.
Yasuyoshi Chiba/AFP/Getty Images
Nude cyclists take part in the 6th annual "Naked Pedaling," in Sao Paulo, Brazil, March 9, 2013.
Yasuyoshi Chiba/AFP/Getty Images
Brazilian TV celebrity Ana Paula Minerato holds a microphone after a cyclist threw red paint on her and refused her entrance to "Naked Pedalling" in Sao Paulo, Brazil, March 9, 2013.
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People take part in the 3rd annual Cape Town Naked Bike Ride in Cape Town, South Africa, March 9, 2013. This event is a protest against car culture and to raise awareness of cycling as an environmentally friendly option.
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People get ready to take part in the 3rd annual Cape Town Naked Bike Ride in Cape Town, South Africa, March 9, 2013.
Rodger Bosch/AFP/Getty Images
People take part in the 3rd annual Cape Town Naked Bike Ride in Cape Town, South Africa, March 9, 2013.