The 1960s monitoring post at Scarborough Castle would have housed volunteers in the event of war.
Radio Berkshire's Lorin Bozkurt explores the origins of a secret emergency war planning facility.
Volunteers who helped restore an Edinburgh nuclear bunker are worried someone will be hurt because of safety issues.
A Cold War volunteer recalls life in a bunker now about to collapse into the sea due to erosion.
The double agent compromised more than 100 operations and betrayed more than 30 agents spying for the West.
The installation still bears its original graffiti and once formed part of the wall in north Berlin.
How did a giant radio telescope in Cheshire help the West monitor the Soviet Union's nuclear missiles?
The "self-contained" bunker embedded into a hillside near Bristol was built in the 1960s.
Wing Cdr Phil Davies is backing plans for a visitor centre at Doncaster Sheffield Airport.