The Tuol Sleng Genocide Museum is a museum in Phnom Penh, capital of Cambodia. The site is a former high school which was used as the notorious Security Prison 21 (S-21) by the Khmer Rouge regime.

toulsleng.com"The 114 photographs on this site are from Pol Pot's secret prison, codenamed "S-21" during his genocidal rule (1975-79). Between 1-2 million Cambodians (and many thousands of foreigners) were starved to death, tortured, or killed, during his brutal reign of terror."