City of Portsmouth, GB
Fort Widley is one of the forts built on top of Portsdown Hill between 1860 and 1868 on the recommendation of the Royal Commission on the Defence of the United Kingdom. It was designed, along with the other Palmerston Forts atop Portsdown, to protect Portsmouth from attack from the rear.
Listen to the audio guide for Fort Widley Free on WIP — starts by itself when you arrive, even with the screen off