Monday's ceremony in Poland is regarded as the likely last major observance of Auschwitz's liberation that any notable number of survivors will be able to attend, due to their advanced ages.

Elderly camp survivors, some wearing striped scarves that recall their prison uniforms, walked to the the Death Wall, where prisoners were executed. Across Europe, officials were pausing to remember.

Jonathan Glazer's film depicts the family of Auschwitz camp commandant Rudolf Höss — they go about their daily routines while a massive machinery of death grinds away next door.

A two-year effort is underway to preserve 8,000 children's shoes at the former concentration and extermination camp where German forces murdered 1.1 million people during World War II.

A shot of the Nazi concentration camp appeared briefly in a shot promoting a match between Dominik and Rey Mysterio on Saturday. The Auschwitz Memorial called the move "shameless."

Emhoff, the first Jewish spouse of a U.S. president or vice president, is in Poland and Germany to mark International Holocaust Remembrance Day and address rising antisemitism around the world.