Sign up for a lamp-lit guided tour of Chislehurst Caves, a maze of tunnels 30 metres (98 ft) below the houses and woodland above ground.
Packed with ancient and more recent history, the caves have been in use for hundreds of years. In the First World War, the tunnels were used for storing munitions and then as air-raid shelters in the Second World War.
After the war and into the 1960s and 1970s, these underground hideaways played host to concerts by famous names including The Rolling Stones and Jimi Hendrix.
Tours of these mysterious passageways last for approximately 45 to 50 minutes.