Philip Cortelyou Johnson was an American architect who designed modern and postmodern architecture. Among his best-known designs are his modernist Glass House in New Canaan, Connecticut; the postmoder
550 Madison Avenue is a postmodern–style skyscraper on Madison Avenue between 55th and 56th Streets in the Midtown Manhattan neighborhood of New York City, New York, U.S. Designed by Philip Johnson an
Seen in 2007
Looking west from 56th Street, with the atrium at center
Tall rectangular windows on the lower section of the facade along Madison Avenue