Between 1940 and January 27, 1945, the German Nazi concentration camp network Auschwitz, in occupied Poland, killed over a million Jewish, Polish, homosexual, Soviet Sinti and Romani people. The most deadly camp of the facility was Auschwitz-Birkenau -- the so-called extermination camp, with buildings expressly built for the mass murder of prisoners via lethal gas.
Even if you were not aware of its deeply grim and tragic history, a pall would still hang over the location. Recently, the BBC showed just how haunting Auschwitz-Birkenau remains, 70 years after that January day in 1945, by flying a camera-equipped drone over the empty buildings and grounds.
The footage enters via the railway tracks that carried the Holocaust trains into the camp, flies over the ruins of the wooden huts that housed over 400 prisoners each in a space 40.8 metres long by 9.6 metres wide by 2.7 metres high, through the front gate that bears the chilling legend "Arbeit macht frei" ("Work makes you free"), and over the brick huts of Auschwitz I and the famous courtyard between Block 10 and Block 11, where executions were held.
Nowadays, the facility stands as a museum, a reminder of the horrors humanity is capable of inflicting on itself.