Fürst, now 92, is one of a dwindling number of Holocaust survivors able to share first-person accounts of the horrors they endured, as the world marks the 80th anniversary of the liberation of the Nazis’ most notorious death camp. Fürst is returning to Auschwitz for the annual occasion, his fourth trip to the camp.

When Teresa Regula arrived at Auschwitz as a 16-year-old, the first real pain she experienced was of her ears burning. "They shaved us down to bare skin, and it was a scorching hot day, August 4... That was the first authentic pain I felt,