Hitler's Last Secret

The numerous bunkers, palaces and hideouts around Europe built by dictators to secure their authoritarian rule. The episode examines the purpose of the Riese network of bunkers, which was Nazi Germany's largest mining and construction project. The bunkers were dug by Nazi prisoners in a remote region of Poland, beginning in 1943. The programme explores whether the bunkers were a headquarters for Hitler or if they were used to build atomic bombs.