Faces & Places of Yesterday Blaine Mansion Near Dupont Circle in 1900 Feb 13, 2013 Share Facebook Twitter Pinterest What an amazing photograph of Blaine Mansion in 1900. This is the only old Dupont Circle “castle” still standing. It’s also a great place to get some pizza and delicious craft beer today. Washington circa 1900. “Jack Blaine residence.” The imposing 1880s home of James Blaine, Republican from Maine and three-time presidential aspirant. The house, the only surviving example of the “castles” that once ringed Dupont Circle, is undergoing a major renovation. National Photo glass negative.