An unremarkable multi-storey parking garage in Rosslyn, Arlington, that became a footnote in American political history. This is the garage where Bob Woodward of the Washington Post met his source "Deep Throat" — the FBI's second-in-command, Mark Felt — during the Watergate investigation in 1972 and 1973.
Woodward and Felt met on the lower level, late at night, away from cameras. Their meetings led directly to the stories that brought down the Nixon presidency. The garage looks entirely ordinary; a small plaque notes the historical connection. Worth a five-minute detour if you're visiting Rosslyn, and a useful reminder that consequential history often happens in the most mundane settings.