The Seagram Building's design was heavily influenced by Phyllis Lambert, daughter of Seagram CEO Samuel Bronfman. It is one of the most notable examples of the functionalist aesthetic and a prominent instance of corporate modern architecture. The building's exterior is formed of a glass curtain wall with vertical mullions of bronze and horizontal spandrels made of Muntz metal. The pink granite plaza facing Park Avenue contains two fountains. Behind the plaza is a large elevator lobby with a similar design to the plaza. The lowest stories originally contained the Four Seasons and Brasserie restaurants, designed by Philip Johnson, which were subsequently replaced by three other restaurants. The upper stories contain office spaces of modular construction.