Initially constructed as a defense against Soviet threats during the Cold War, the Barnton Nuclear Bunker, located near Edinburgh, was created in 1944 though it remained secret until 1955.

A secret Cold War nuclear bunker considered the "first defence against the Russians" could be used by the Ministry ... MoD had commissioned surveys on the underground safe zone and Army regiments ...

She heads into Berlin's underground U-Bahn system to visit the disused war bunkers built inside its stations. BBC Click visits a UK research team working on a solution to remove toxic chemicals ...