Cold War tunnels under Holborn approved to become a tourist attraction

A network of Cold War tunnels under Holborn has taken a step closer to opening up as a public venue now that the City of London has approved planning permission for the change of use.
One of the tunnels (c) DBOX for The London Tunnels
Built during WWII as shelters from bombs but never used by the public, the tunnels were converted into deep-level telecoms exchange during the Cold War. They became rather legendary in the subterranean world when details about them emerged.
They were put up for sal