Red Maples: in the Village of Southampton, New York. Rose Hill Mansion: a restored Greek Revival mansion, a National Historic Landmark on Seneca Lake near Geneva, New York Sagamore Camp: one of the Great Camps of the Adirondacks, a National Historic Landmark Sagamore Hill (House): the home of President Theodore Roosevelt in Cove Neck, New York Santanoni Preserve: one of the Great Camps of the Adirondacks, a National Historic Landmark Springwood Estate: a Federal and Italianate mansion in Hyde Park, New York; the birthplace, lifelong home, and burial place of Franklin D. Roosevelt; added as a National Historic Site in 1945 Templeton: the Georgian Revival mansion of Alfred I. du Pont in Brookville, New York, now the DeSeversky Conference Center. Westbrook: the Long Island mansion of William Bayard Cutting. Winfield Hall: the ornate former residence of Frank Winfield Woolworth on Long Island in Glen Cove, New York North Carolina Biltmore Estate: the largest private home in the United States, built by George Vanderbilt; it is located outside Asheville, North Carolina Ohio Stan Hywet Hall and Gardens: a Tudor Revival country estate and the residence of Frank Seiberling in Akron, Ohio. A Christmas Story House Franklin Castle Hawthorn Hill: Hawthorn Hill in Oakwood, Ohio, was the post-1914 home of Orville Wright. Pennsylvania Belmont Mansion: home of William Peters in Philadelphia, Pennsylvania Clayton: the Pittsburgh home of industrialist Henry Clay Frick Elstowe Manor: the 60,000 sq ft mansion of William L. Elkins in Elkins Park, Pennsylvania Fallingwater: a Frank Lloyd Wright designed house in Bear Run, Pennsylvania Grange Estate: Haverford, Pennsylvania, built in 1700, home of patriot John Ross Lynnewood Hall: the Neoclassical mansion of industrialist and art collector Peter A. B. Widener in Elkins Park, Pennsylvania Edgar Allan Poe National Historic Site, Philadelphia, Pennsylvania Whitemarsh Hall: the 100,000 sq ft mansion of Edward T. Stotesbury designed by Horace Trumbauer outside Philadelphia, Pennsylvania. Rhode Island Beechwood: a mansion and the former residence of Caroline Astor in Newport, Rhode Island Belcourt Castle: the summer mansion of Oliver Belmont, American banking heir Blithewold: an 1896 waterfront mansion and gardens in Bristol, Rhode Island The Breakers: Newport, one of the most ambitious residences of the Gilded Age and an architectural landmark Carey Mansion: a Châteauesque mansion and the residence of liquor millionaire Edson Bradley in Newport, Rhode Island Chateau-sur-Mer: a French villa and the former residence of William Shepard Wetmore in Newport, Rhode Island Chepstow: