The National Historical Park is located in Hyde Park, New York, just a few miles from the Franklin D. Roosevelt NHP and Presidential Library. If you see one, see the other. Like Newport, Rhode Island, this is about affluence in the Gilded Age. This was one of the homes owned by Frederick William Vanderbilt. He and his wife, Louise, never had children. The home was willed to their niece, Margaret Van Alen. She already had a lot of wealth and the property came with a large tax bill. She sold it to the National Park Service for a break on the taxes due on the property.