Prison 21 (previously known as Toul Sleng Genocide Museum and Memorial), a torture and execution facility of the Khmer Rouge.
In the background is a large gallows used for both hanging and/or drowning (in water-filled pots) and cellblocks. These cells were packed with two million subversive ‘KGB/CIA’ agents pretending to be teachers, students, artists, intellectuals, doctors, mechanics, engineers, mothers, philosophers, mathematicians, scientists and so on. These prisoners were generally beaten or tortured to death as the Khmer Rouge wanted to save on bullets.
If you really wish to know about the staggeringly horrific Khmer Rouge era start with the Toul Sleng Genocide Museum, aka Prison 21, and move on to the Killing Fields later out at Choeung Ek if you can handle more death and destruction.
Personally I found this record of genocide more affecting than a trip to Auschwitz, probably due to the impact of the massed victim photos but partially the complete lack of rationale for this mass slaughter of their own people.
Pol Pot and his mad band of sadists and torturers killed at least one quarter of the entire population of Cambodia over 5 years from 1975-1979 for no apparent reason except that they were urban folk and ‘suspected agents of the CIA/KGB’.
Thousands of photos of the detainees are pinned up in Prison 21, staring, blank, uncomprehending, days before cruel death.
Even today Cambodian society is missing a generation of skilled workers, thinkers, artists.