This model of Hitler's study is on display in the Berlin Story Museum. It was in this room that Eva Braun and Hitler met their end on 30 April 1945. The couple were married in the bunker's map room the day before in a sombre ceremony followed by an even gloomier reception, both aware of Soviet troops drawing ever closer.

Johanna Ruf, who died in 2023 aged 94, is believed to have been the last witness of the final days in the bunker. Then a 15-year-old nurse working in a makeshift hospital adjoining the shelter, she remembered Joseph Goebbels giving her a pep talk during the final weeks of the war. "He said, ‘Final victory is at the door’," she recalled. "But only the Russians were at the door."

Inside the top-secret bunkers where history was made