A steel-and-concrete one-room dwelling on Salt Island in British Columbia by Tom Kundig of Olson Kundig Architects in Seattle. See the outdoor shower and more in A Master Architect Builds a Tiny Cabin in the Pacific Northwest.
One Way Colour Tunnel by Olafur Eliasson. This is a tunnel made up of light-shattering translucent and reflective triangular panels of coated acrylic, iresembling a walkway of stained glass. This is at the San Francisco Museum of Modern Art.