Mies van der Rohe's 1951 glass pavilion beside the Fox River in Plano, Illinois: a single transparent room lifted above the floodplain on eight white steel columns, with travertine steps floating up from the meadow. A National Trust museum.
A 3D model of Farnsworth House, built from photographs and drawings with my3dhouse. It is an interpretation of the building, not a survey of it.