Even after 70 years, it is hard for us to imagine what the prisoners at this camp went through at Auschwitz-Birkenau in Poland. The survivors of the camp gathered there yesterday with world leaders to remember the horrors that happened there.
Auschwitz-Birkenau was the largest camp built by the Nazis in WWII. Over a million people died here, mostly Jews, until the camp was liberated on January 27th, 1945.
A feature on BBC News shows us footage from a drone flying above the camp, letting people all over the world see what these people endured for months and years on end, so that we can remember even 70 years later.
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Auschwitz-Bikernau is now a UNESCO World Heritage site, which receives thousands of visitors every year. Through the drone, we can see where prisoners slept, worked, and where they were executed, too.