Dusseldorf

This is a city in Germany, in Western Germany. It is mentioned during the book as the location of the prison where Franz Strangl is being kept to serve his sentence for war crimes committed during World War 2. Franz is extradited to this location from Brazil, decades after the war had ended.

Treblinka

This is a location in southwestern Poland and is the name of camp was used for extermination, the killing of people Nazis deemed unfit. The victims at this camp were Jews, although there may have been some vicitms who were merely out of favor with the leadership. It was for his service here that Franz Strangl was charged with war crimes.

Austria

This is the German-speaking nation immediately south of Germany known for its mountains. Austria's Chancellor was assassinated a few years prior to the nation being invaded, saturated and overrun with Nazi Germans...