A hilltop fortress built to guard the dockyard, with ramparts to walk and a maze of tunnels cut into the chalk.
Get directionsDock Road, Chatham, ME4 4UB
It was begun in 1756, during the Seven Years' War, to defend Chatham Dockyard and the River Medway from French attack.
Convicts dug its network of tunnels between 1802 and 1811, and guided tours now take visitors underground.
It is described as the most complete Napoleonic fortification in Britain.
Dock Road, Chatham, ME4 4UB
Loved it?
Spotted something off? Report a problem
Know a day out we’re missing? Suggest a place