Thirty metres (100 feet) below the UK capital's bustling streets, all that can be heard in the tunnels built to withstand a nuclear attack is the rumble of the London Underground's Circle Line.

LONDON: Once home to British spies and a secret long-distance telephone exchange, a little-known network of underground tunnels is located behind a blue door in a narrow London hallway.

LONDON – Tunnels built to shelter Londoners during World War II bombing by Germany are set to be transformed into the British capital's biggest new tourist attraction for years, according to the ...

Behind a blue door in a narrow London passage lies a little-known network of tunnels deep underground, once home to British spies and a secret long-distance telephone exchange. Thirty metres (100 feet ...

London's Blitz Shelter Tunnels to Become a New Tourist Attraction LONDON (Reuters) - Tunnels built to shelter Londoners during World War Two bombing by Germany are set to be transformed into the ...

LONDON (Reuters) - Tunnels built to shelter Londoners during World War Two bombing by Germany are set to be transformed into the British capital's biggest new tourist attraction for years ...