(History reminder: During the American Civil War, the Potomac River was a boundary between the Union and the Confederacy.) Snag a rental kayak from Boating in DC at any of a handful of locations ...

Spend a day exploring D.C.'s oldest neighborhood. Home to the prestigious Georgetown University and a weekly flea market that ...

This $615 million project is key to cleaning up the Potomac River. When heavy rain strikes a centuries-old neighborhood in Alexandria, Va., the city’s pipes can’t handle the volume.