Size: About 79 sq. ft.
Location: Weil am Rhein, Germany
Best known for Manhattan's New York Times Building, London's The Shard, and the Paris' Pompidou Museum, now Piano is turning his attention to the tiny details — specifically, to "Diogene," a tiny house prototype built for German furniture company Vitra.
The house, constructed of wood and aluminum paneling, collects, cleans, and reuses water; it also supplies its own power, and features photovoltaic cells and solar modules, a rainwater tank, a biological toilet, and natural ventilation.