This has to be one of the most powerful footages ever captured with a drone. Seventy years after the camp was liberated by the Soviet troops, haunting atmosphere still remains at the Auschwitz-Birkenau concentration camp in Poland, which is now maintained as a World Heritage Site.

It was built in 1940 and liberated in 1945, with nothing but ruins remaining of the wooden huts with brick fireplaces and chimneys, which once served as death rooms for innocents jews, who lost their lives to hatred.