Museum
Tuol Sleng Genocide Museum
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Tuol Sleng Genocide Museum occupies what was once a Phnom Penh high school, converted by the Khmer Rouge in 1975 into Security Prison 21 (S-21). Visitors walk through stark classrooms where prisoners were shackled and tortured, seeing haunting photographs of victims and preserved cells. The museum stands as a memorial to the estimated 20,000 people who passed through its gates, most of whom were later executed at the Killing Fields. It offers a deeply moving, educational experience about Cambodia's tragic past.
Don't miss
- View the haunting black-and-white portraits of prisoners taken upon arrival.
- Explore the preserved cells and torture instruments in the original buildings.
- Read survivor accounts and historical exhibits detailing the prison's operation.
Tickets & tours
Ways to visit Tuol Sleng Genocide Museum
You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.
Cheapest way inVisit Killing Field & Genocide Museum S21 only USD10/pp4.6★ · 10 travelers5–6 hoursFree cancellationFrom$10 per personSee dates →
Most bookedThe Killing Field and Toul Sleng Genocide Museum (S21) Tour4.9★ · 2,180 travelers~4 hoursFree cancellationFrom$19 per personSee dates →
Private & flexiblePhnom Penh City and Silk Island Tour No Genocide Sites5★ · 25 travelers~8 hoursFree cancellationFrom$38 per personSee dates →More attractions in Phnom Penh