River Walbrook

A buried stream that once ran south through the heart of the City of London to the Thames. In Roman times it helped define the city's internal geography. - Status: Buried beneath the financial district - Surface clues: The surviving street name Walbrook preserves its memory - Historical importance: Archaeology in the Walbrook valley has revealed Roman roads, burials, and ritual deposits

Finsbury Circus to Cannon Street, London, United Kingdom