hitchBOT uses human kindness to travel the world. Relying solely on strangers to pick it up and then leave it behind for other friendly drivers, hitchBOT crossed Canada in just 26 days and successfully toured through Germany. In the US, it attempted to travel from Salem, MA, to San Francisco- but lasted just 2 weeks before it was found decapitated and armless on the streets of Philadelphia. Source Source 2 Source 3