Step inside the 'top secret' bunker where Britain prepared for nuclear WAR: Nottingham War Rooms are revealed for the first time in incredible 3D scans

It was once one of Cold War Britain's best-kept secrets. But now, you can take a look inside the'top secret' bunker where the government prepared for nuclear war. For the very first time, incredible 3D scans reveal the interior of the Nottingham War Rooms. Built between 1952 and 1953, the rooms protected one of the 11 Regional Seats of Government which would have controlled the surviving population in the event of an atomic blast. Inside, you can still see the original dormitories, kitchens, and offices built to house up to 400 government officials.