Fallingwater/Edgar Kaufman House / 1413 Mill Run Road, Mill Run, Pennsylvania / 1936-1939 / Frank Lloyd Wright -- The only kitchen at Fallingwater was used by the Kaufmann family, as well as servants and visitors staying in the guest bedrooms or guest house. The kitchen was completed in 1936 and included St. Charles metal cabinets. Wright designed in a radiator underneath the cabinets that heated the home. The kitchen's appliances were upgraded in the 1950s.