A secret bunker built at the height of the Cold War to be used in the event of a nuclear attack is to be opened to the public.
The bunker, at Eassie near Arbroath, was designed to be used by Royal Observer Corps volunteers to give early warnings of enemy attacks.
Part of a hidden underground network, the 15ft by 7ft shelter could withstand blasts powerful enough to destroy most buildings.
It was purchased nine years ago by former observer Cheryl Stewart, who has since created a museum thanks to lottery funding.
She is now opening the 1958 bunker to members of the public.
Ms Stewart said: "There was a great risk in the late '60s and '70s, and people of my age will remember the tension and unease at that time.
"Fortunately it didn't happen and we weren't put to the test but we trained diligently and had it happened we would have done our duty."
Ms Stewart said even many locals were unaware of the bunker.
"It's something so unusual. We have visitors who say 'we've lived in Arbroath for 50 years and we didn't know this was here'", she said.
"A lot of people think it's something to do with the water board and I think they are intrigued because it's something that was secret which is no longer secret and they can come and see what did happen."