A fabulous opportunity to own a piece of Mid-Century Modern History! This very stylish masterpiece was designed by renowned American architect, Richard Foster for his family. Often in partnership w/Phillip Johnson of the Harvard Five, he worked on both Glass House in New Canaan & Round House in Wilton. His work can also be seen throughout the country at the NYU library & the Kline Biology Tower at Yale University, among others. Featuring a skylit, 25-foot glass-topped Atrium & posting breathtaking views through 12-ft Mahogany Tischler & Sohn glass doors at the rear of the home, the 4.3 acre property's famed history goes even further back. Part of the Ridgefield Boys School in the early 1900's, the add'l 2-Bedroom Guest House incl the original indoor basketball court from the time, which was later used by noted author & director, Michael Chekhov, as the location for his Theatre School hosting such celebrities as Ingrid Bergman, Gary Cooper, Marilyn Monroe, Clint Eastwood & more. The main house incl. 4 large Bedrooms, an Office, stunning Family Room with views, an updated Kitchen w/ prof appliances, Living Room/Dining Room combination w/a fireplace & views + a fabulous entertaining space in the Lower Level complete w/wet bar, full bath & gym. Property also incl a heated in-ground pool, generator & room for horses or tennis. Privately nestled on 4.3 acres, close to all North Salem bridle trails & easy commute location to NYC, it is truly a magnificent, one-of-a-kind residence!