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Tuol Sleng Museum

When the Khmer Rouge came into power in 1975, they commandeered and converted a secondary school into a primitive prison where they detained and tortured anyone suspected of anti-revolutionary behaviour. Between 1975 and 1979, an estimated 20,000 victims were imprisoned in Security Prison 21, or S21, as it was known. The museum was established after the Vietnamese invasion of Cambodia and today it appears exactly as the fleeing Khmer Rouge left it, and serves as a testimony to the crimes and atrocities of the organisation. It is a tremendously depressing experience, and the pictures, instruments of torture and bloodstained walls give a thorough idea of the extent of the pain and horror borne by the Cambodian people. Thousands of victims were transported from here to the extermination camp outside the city, Choeung Ek.