Tuol Sleng museum
One of the most famous prisons of the Khmer Rouge period is the Tuol Sleng museum, the S-21 prison. The former school was used for torture and questioning until 1979. Circa 14,000 people passed through this prison, of which only seven are believed to have survived. Most of them were executed in Choeng Ek, better known as the killing fields. Torture was used to extract confessions about facts the ‘enemies’ did not commit. Photos and confessions were taken as proof that the suspect was indeed executed and did not manage to get away.