Hillwood Estate, Museum, and Gardens
Since its purchase in 1955 by the businesswoman, socialite, philanthropist and collector Marjorie Merriweather Post, Hillwood has served to function once as a place of residence, and forever as a museum to educate and awe those who visited it. Hillwood is known largely for its sizeable decorative arts collection that focuses heavily on the House of Romanov, a collection of French decorative art, and acres of sculpted gardens. Included in the collection are, among other pieces, Fabergé eggs, 18th and 19th century French art, and one of the country's finest orchid collections. Hillwood's mansion and gardens opened to the public in 1977 and are maintained by the Post Foundation.
The Tregaron Estate, also known as the Causeway, is a twenty-acre estate located between Washington, D.C.’s Woodley Park and Cleveland Park neighborhoods. Built in 1912, the Tregaron Estate was designed by famed architect Charles Adams Platt, and it remains one of his most well-known works of architectural design in Washington, D.C. The historic estate includes a mansion, carriage house, greenhouse, gardener's residence, a Russian-style dacha, and numerous landscaping features designed by Ellen Biddle Shipman. It was added to the National Register of Historic Places in 1990 for its significance in architectural and landscape design and its notable homeowners. It is also a contributing feature of the Cleveland Park Historic District. Today, the buildings are home to the Washington International School and the Tregaron Conservancy. The Tregaron Estate is in the midst of a restoration project by the Tregaron Conservancy and is open to the public.
Woodley is a Federal mansion in Washington, D.C. constructed in 1801 by Philip Barton Key. As a private residence, it was home to well over a dozen influential individuals, including Presidents Grover Cleveland, Martin Van Buren, and James Buchanan, and Secretary of War Henry L. Stimson. Since 1952, Woodley has been home to the Maret School, a private K-12 school founded in 1911 by three French sisters.
Dumbarton Oaks includes the historic Dumbarton Oaks House museum and its associated formal garden, a 27-acre wilderness area, and Harvard University's Dumbarton Oaks Research Library. Founded by Robert Woods Bliss and Mildred Barnes Bliss, the Dumbarton Oaks Research Library and Collection specializes in Byzantine, Garden and Landscape, and Pre-Columbian studies, and includes not only books, but also images, art, objects, and documents.
Tudor Place is a Federal mansion overlooking the Potomac River in Washington, D.C., connected with important individuals and families who founded the nation and its capital city. Tudor Place was built in 1816 by Martha Parke Custis Peter, Martha Washington’s granddaughter, and Thomas Peter, a businessman from Georgetown. Dr. William Thornton, the first Architect of the United States Capitol, designed Tudor Place with architecture styles inspired by ancient Rome and contemporary France. Tudor Place stayed in the Peter family for six generations until the property was deeded to a foundation in 1983. It opened as a museum in 1988 and interprets the multiple historical eras. Tudor Place is listed on the National Register of Historic Places and was among the first properties designated as a National Historic Landmark.