
The catacombs are rarely open to the public but you can catch glimpses from the Camden Stables Market. When you're wandering around Camden Markets, you're standing above a web of vaults and passageways known as the Camden Catacombs, built in the 19th century as stabling for the pit ponies that serviced the railway/canal interchange. See /visits/churchillwar-rooms for more information.

The wall maps with pins, old-style phones etc are all still in place, so this museum really does feel like you've stepped back in time. In 1945 they simply switched out the lights and left, preserving everything as it was. The British government co-ordinated the war effort from this warren of bunkers under Whitehall.
