English Heritage has announced a wartime dome in Norfolk, used to train anti-aircraft gunners, is one of its priority sites for rescue and repair.
A number of buildings in the region have also been added to the "at risk" register - including three in Suffolk and five in Norfolk.
Natalie Gray reports.
More top news
A group of friends in Haverhill have left one of their mates with a fractured spine after a prank with a home-made ejector seat went wrong
It will stay cold this weekend with further wintry showers at times.
Icy stretches will form tonight as temperatures drop and wintry showers develop later.