The Entrance Hall replaces the small forecourt and porte-cochere that protected the mansion's original entrance.
- 24 feet wide and 28 feet long
- 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.
- 16-foot-wide and 52-foot-long
- 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.