At Auschwitz, the Germans left behind barracks and watchtowers, the remains of gas chambers and the hair and personal belongings of people killed there. The “Arbeit macht frei” (work will set you free) gate is recognized the world over.

Eva Szepesi, 92, is traveling this week to the Nazi concentration camp she narrowly survived, where her mother and brother were both murdered. Szepesi, who grew up in Slovakia and now lives in Frankfurt,