Buried deep beneath the British countryside is a maze of tunnels dug out as a new Government headquarters in case of nuclear apocalypse.
The bunker - codenamed Burlington - was built in the late 1950s during heightened fears of attack during the Cold War.
Thankfully, it was never used for its intended purpose, but the labyrinthine subterranean network of rooms near Corsham, Wiltshire, has been kept untouched since.
