Dark Places is a trusted and active forum and research portal relating to urban and underground exploration.
The site is run by the hamster loving explorer, Root and has a huge collection of posts, photographs and a wiki.
Visit Dark Places - Darkplaces is an independent meeting point for all underground related explorers to chat, meet and share information.
Root's explorer profile - Root is interested in bunkers, caves, Cold War sites, military bases, mines, pill boxes, potholing, quarries, ROC posts, tunnels and World War II sites.
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- Box Tunnel
A two mile long tunnel, built by Isambard Kingdom Brunel through Box Hill. Next to the eastern entrance of the tunnel you can see the remains of a branch from the main London to Bristol railway line which lead into the hillside into the Corsham Ammunitions Depot and terminated at a half-mile long underground railway station which was used during World War II.