Around 200 firefighters were deployed to tackle the blaze at the Eagle's Nest, in Bavaria, which Nazi dictator Adolf Hitler used as a retreat to host foreign dignitaries in its mountaintop teahouse. newsiviewlistenLoading ABC NewsNews HomeFire breaks out at Hitler's mountain retreat in Germany, suspect arrestedShareShare articleFire breaks out at Hitler's mountain retreat in Germany, suspect arrestedTopic:Fires. Authorities were alerted to the fire on Friday evening when an alarm went off.