The market at the entrance to the Shoa Gate, one of six gates leading into the walled city of Harar, Ethiopia, Africa

The market at the entrance to the Shoa Gate, one of six gates leading into the walled city of Harar, Ethiopia, Africa

Holocaust Memorial designed by architect Peter Eisenman, memorial to the murdered jews of Europe, with a view of the Quadriga on the Brandenburg Gate and the dome of the Reichstag parliament, Tiergarten district, Mitte district, Berlin, Germany, Europe

Gestapo prison, prison of the secret state police of Nazi Germany, Terezin, Czech Republic, Europe

Gestapo prison, prison of the secret state police of Nazi Germany, Terezin, Czech Republic, Europe

Aerial view, former concentration camp Buchenwald near Weimar, Thuringia, Germany, Europe

Entrance gate and rail tracks to the concentration camp, Auschwitz-Birkenau, Poland, Europe

Entrance gate to the concentration camp, Auschwitz-Birkenau, Poland, Europe