From the outside, it looks like an ordinary bungalow tucked away on the outskirts of Reading. There is a garden, a swimming pool and a workshop, nothing to suggest that beneath the property lies a sprawling subterranean world that took two decades to create. Descending more than 15 metres underground are four levels of hand-dug tunnels, complete with rooms, corridors, a railway, a one-tonne goods lift and secret entrances, adds an online report by AOL.
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