These four (4) tickets ensure you and your family or friends can attend the Friday evening, December 7th Holiday Open House at Dumbarton House, a magnificent Federal period historic house museum. Held annually in this Georgetown landmark, the Holiday Open House features evening tours of the museum, which has been beautifully decorated for the season, as well as children's crafts, activities and refreshments. A wonderful way to celebrate the holiday season in one of the most lovely neighborhoods in Washington!