I've hitchhiked over 25.000km, so far covering Holland, Germany, Poland, Czech Republic, Austria, Slovakia, Austria, Italy, Switzerland, Latvia, Lithuania, Russia, Mongolia, China and Japan.
You can view some of my hitchhiking trips on youtube: https://www.youtube.com/watch?v=eE0_nDmW85k&list=UUA_6DTsq4k7y4MkuScgFiJQ