The secret underground city built near Bath in case of nuclear war - Somerset Live
Lifting The Lid On Box Hill' Full Documentary Transcript | Higgypop Paranormal
Burlington Bunker: Britain's Secret Underground City
Report - - Box Tunnel East Portal (Sidings to Tunnel Quarry and CAD), Wiltshire - February 2015 | Underground Sites | 28DaysLater.co.uk
Wir lieben alte... - Arbeitsgemeinschaft Berliner U-Bahn e.V. | Facebook
Subterranean bunker-cities - BLDGBLOG
Wir lieben alte... - Arbeitsgemeinschaft Berliner U-Bahn e.V. | Facebook
Sir Humphrey on Twitter: "A blurry shot of the entrance to the old WW2 ammo depot in Box tunnel, complete with its own underground station, and a path up to the Corsham