Now open Saturday, Sunday and Monday Holidays, 10am-4pm, May 27 through June 18. Discover what life was like on an early 20th century New Hampshire summer estate. See new exhibits in history, ecology and art. Take an historic guided tour of the 22-room Colonial Revival Main House, explore the renowned gardens, build a fairy house in the children’s Fairy Village and experience the natural world on an easy hike along one of our scenic trails. Our self serve on your honor Plant Stand is open daily, 10am-4pm, in the Gatehouse Courtyard. Site Admission.