Europe has no corner on the weird celebration market! In Seattle they bike ride nude. They say it is to protest car polution...but if you look at some of the pictures, they cause eye polution to me. Nudity ain't all that pretty. There is an actual organization, World Naked Bike Ride, which promotes protest against the "car culture" (I take it they would not like my Mustang GT) and celebrate the human body and cycling (have to admit...I like those two...too...).