If you've ever wanted to live in a rolling house that doesn't take up much space and even has space on the outside for advertising, get thee to the U of Karlsruhe (non-German link here).
This cyclindrical design is a modular protype that provides flexible space within a minimum housing unit. Three different sections are dedicated to different functional needs: there's a bed and table in section, an exercise cylinder, and a kitchen with a sink.
