This 1,000 square-foot weekend cabin, basically a steel box on stilts, can be completely shuttered when the owner is away. Situated near a river in a floodplain, the 20’ x 20’ square footprint rises three stories and is topped by the living room/kitchen. Large, 10’ x 18’ steel shutters can be closed simultaneously using a hand crank. Interiors by Olson Kundig Architects