2 Passes for free admission to the Dumbarton House museum during regular hours. 

Built circa 1800, Dumbarton House has been called one of the finest examples of Federal period architecture in America, and is today on the National Register of Historic Places.

Step back in time to witness the architecture, decorative arts, and atmosphere of the 19th century.  Enjoy a look around the grounds, or schedule a guided-tour.  Currently on exhibit is the "Five Generations of Nourse Family Artists".