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Dover Then and Now |
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| DoverWeb | Dover's Premier Website |
| Underground Kent | Ex-military tunnels, Napoleonic fortifications and Underground tunnels of Kent |
| Western Heights Today | Dover Western Heights Fortifications |
| Kent Underground Research Group | Underground in Kent and East Sussex |
| Subterranea Britannica | Subterranea sites in the UK |
| Friends of Dover Castle | |
| Dover Underground | Underground sites of Dover |
| Old Dovorians | Can you identify the mystery people of Dover |
| Dover - Lock and Key | History of Dover |
| Dover Pages | More history of Dover |
| Western Heights Preservation Society | |
| White Cliffs Underground | Dover and Folkestone and More.... |