Bicycle Sauna, H3T Architects, 2011

Equipped with the necessary hookups to tow behind a tandem bike, this richshaw-like contraption is a sauna that, amazingly, can fit six. Heat is generated by an internal fireplace and trapped by the polycarbonate hood.  Independence and Mobility from Seriously Tiny (and Slightly Strange) Hangouts That Push the Limits of Micro-Living