The Strangest Underground Places in Britain
The most unusual places to vist below ground - and all open to the public. Stangest Underground Places in Britain and the best worldwide includes a street of shops and houses sealed and entombed following the plague, massive power stations in hollow mountains, the secrets of mystery hill, the mining tombs, prisons and dungeons, the amazing underground cathedral made of salt, the hall of bones, underground concerts, and even a complete town built underground...and much much more
