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This week we\u2019re at Dover Castle in Kent to take an exclusive tour of the \u2018Dumpy\u2019 level of its secret underground tunnels with Cold War expert Mark Bennett.\n\nOnce fully equipped and designed to keep those inside 'safe' from nuclear fall-out, the austere rooms and tunnels are now largely devoid of their equipment, furnishings, fixtures and fittings, but still retain a chilling air of the Cold War. Discover when the tunnels were built, why Dover Castle was selected and how you can take a tour of the tunnels today.\n\nTo find out more about Dover Castle and our exclusive Members\u2019 tours of the \u2018Dumpy\u2019 level of the secret war tunnels, go to www.english-heritage.org.uk/dover\nLearn more about your ad choices. Visit megaphone.fm/adchoices