(Massachusetts)
The Gardens at Elm Bank, home of Massachusetts Horticultural Society, occupies 36 acres (15 ha) of Elm Bank Reservation, a 175-acre (71 ha) recreational area of woodlands, fields, and former estate property on the Charles River managed by the Massachusetts Department of Conservation and Recreation. The estate's entrance is located at 900 Washington Street, Wellesley, Massachusetts, United States, with the major portion of the grounds located in the neighboring town of Dover. In 1987, the entire site was added to the National Register of Historic Places as Elm Bank. (Ref: https://en.wikipedia.org/wiki/Elm_Bank_Horticulture_Center)