The Wolfs Lair, Hitler's World War II secret bunker, Bunker 13 (Hitler's bunker), Masuria, Poland, Europe

The Wolfs Lair, Hitler's World War II secret bunkers, Masuria, Poland, Europe

Eagle's Nest, Kehlsteinhaus, Hitler's lair at Berchtesgaden in the Bavarian Alps, Germany

Eagle's Nest, Kehlsteinhaus, Hitler's lair at Berchtesgaden in the Bavarian Alps, Germany

Crow flying over Eagle's Nest, Kehlsteinhaus, Hitler's lair at Berchtesgaden in the Bavarian Alps, Germany

Eagle's Nest, Kehlsteinhaus, Hitler's lair at Berchtesgaden in the Bavarian Alps, Germany

Information board for Adolf Hitler's tribune in front of the Zeppelinfeld field, Reichsparteitagsgelaende Nazi party rally grounds, the Third Reich, Nuremberg, Middle Fraconia, Franconia, Bavaria, Germany, Europe

The streets of Adolf Hitler, Nazi pamphlet, Topography of Terror, Berlin, Germany, Europe

Germany, Berlin, Information plaque denoting location of the former Hitler Bunker, now a car park and apartment block.

Germany, Berlin, Information plaque denoting location of the former Hitler Bunker, now a car park and apartment block.

Poland, Auschwitz-Birkenau State Museum, Auschwicz Concentration Camp, 'Arbeit Macht Frei' slogan above the entrance gate.

Poland, Auschwitz-Birkenau State Museum, Birkenau Concentration Camp, Ruins of former accommodation blocks surrounded by barbed wire fencing.

Germany, Berlin, Angular view of the Brandenburg Gate viewed through side columns.

Poland, Auschwitz-Birkenau State Museum, Auschwicz Concentration Camp, Display unit with some of the victims suitcases.

Germany, Berlin, Angular view of the Brandenburg Gate viewed through side columns.

Germany, Berlin, Brandenburg Gate from the east side.

Germany, Berlin, Brandenburg Gate from the east side.

Germany, Berlin, Brandenburg Gate from the east side.

Germany, Berlin, Brandenburg Gate from the east side.