Old Stone House - Georgetown's 18th-century cottage

The Old Stone House at 3051 M St NW was constructed in 1765 and is recognized as the oldest unchanged building in Washington, D.C. The National Park Service owns and interprets the site, furnishing it to reflect mid-18th-century domestic life and offering historical programs. The small house and its garden are noted by residents as a local historic landmark tucked into the Georgetown commercial corridor.