188 (A) Frank Lloyd Wright: New York, Guggenheim Museum, (1943-6), 1956-9
188 (B) Frank Lloyd Wright: New York, Guggenheim Museum, (1943-6), 1956-9
189 Skidmore, Owings & Merrill (Gordon Bunshaft): New York, Lever House, 1950-2
190 (A) Philip C. Johnson: New Canaan, Conn., Boissonas house, 1955-6
190 (B) Eero Saarinen: Chantilly, Va., Dulles International Airport, 1960-3