The Entrance Hall, 24 feet wide and 28 feet long, replaces the small forecourt and porte-cochere that protected the mansion's original entrance. Four marble overdoor reliefs represent the arts of Music, Sculpture, Architecture, and Painting.
The Reception Hall was the major element of the 1975–77 addition to the Collection, built in a style combining reminiscences of Mansart's Grand Trianon at Versailles and elements of the Italian Baroque. This 16-foot-wide and 52-foot-long room provides a unique space for entertaining at seated dinners for up to 50 guests and receptions (in conjunction with the Entrance Hall) for up to 200 guests. The Garden, with its pool and changing seasonal plantings, can be seen through the hall's three large windows.