Survivors of the Nazi's notorious Auschwitz death camp are taking center stage at the memorial service to mark 80 years since its liberation by Soviet troops.

It doesn’t do any good for your heart, for your mind, for anything,” said Holocaust survivor Jona Laks, 94, about her return to Nazi Germany’s Auschwitz-Birkenau concentration camp.

In all, the Nazi regime murdered 6 million Jews from all over Europe, annihilating two-thirds of Europe's Jews and one-third of all Jews worldwide. In 2005, the United Nations designated Jan. 27 as International Holocaust Remembrance Day.

Jews in Hungary and around the world are observing Holocaust Remembrance Day 80 years after the liberation of the Auschwitz-Birkenau death camp

Nazi German forces murdered some 1.1 million people at the site in southern Poland, which was under German occupation during World War II.

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