World leaders rubbed shoulders with 56 survivors of Hitler's death camp as they marked 80 years since its liberation.

Auschwitz survivors have warned of the rising antisemitism and hatred in the modern world as they gathered with world leaders and European royalty on the 80th anniversary of the death camp’s liberation.

Auschwitz survivors returned to the death camp in Poland to mark 80 years after the liberation. NBC News' Jesse Kirsch visited the location with some of the survivors as they shared their past experiences and what they want the world to know on Holocaust Remembrance Day.

That creates risks: the Holocaust didn’t begin with mass murder. The dehumanization of Jews progressed gradually from public exclusion to eventual internment to finally extermination. Millions of regular Germans—and Europeans more broadly—facilitated or silently accepted these actions.