The Alfred de Schulthess House, 1956, Cubanacan Playa, Havana, Cuba. 9350 square feet. Raul Alvarez worked as supervising architect; Benno Fischer, Serge Koschin, John Blanton all worked on the architectural design; the noted Brazilian landscape architect, Roberto Burle Marx, collaborated on the landscape design of the three-acre property. Now a diplomatic residence for Switzerland. Received the 1958 National College of Architects Gold Medal.