Naked volunteers battle with pillows as they pose for U.S. artist Spencer Tunick in front of the Gaasbeek's Castle, July 9, 2011. Organisers estimated 800 people posed for the early morning nude photo installation titled "Sleeping Beauties"
Image by: Thierry Roge / REUTERS

Cyclists take part the annual World Naked Bike Ride in Portland, Oregon June 18, 2011. World Naked Bike Ride is a globally observed event among hard-core bikers designed, at least ostensibly, to promote the use of the bicycle for transportation. But Portland cyclists have been especially adamant about making it another of the Pacific Northwest city's quirky traditions
Image by: Thierry Roge / REUTERS

Participants run during the annual Naked Run in the camp site at the Roskilde Festival, west of Copenhagen July 2, 2011
Image by: Thierry Roge / REUTERS

Activists from the Ukrainian female rights organization "Femen" hold a protest rally on a balcony of a building on the city main street Kreschatik in Kiev February 1, 2011. The women protested against the initiative of the city authorities to make local residents, who live less than 1500 metres (4921 feet) away from the Olympic stadium, which will host matches of Euro 2012, tidy up their balconies and prohibit people from appearing on their balconies while wearing underclothing. The officials’ initiative is aimed at upgrading the territory and decorating the buildings, which will be restored and illuminated, in the central part of the capital as part of preparations for the 2012 European soccer championship, according to local media. The placard (2nd R) reads "Private property"
Image by: Thierry Roge / REUTERS

Paraguayan model Larissa Riquelme poses for photographers before the semi-final soccer match between Venezuela and Paraguay at the Copa America in Mendoza July 20, 2011
Image by: Thierry Roge / REUTERS