This museum is the site of the S-21 detention center. It was once a school in the center of Phnom Penh . In 1975 it became the center for torture and death. From 1976 to 1979, an estimated 20,000 people were imprisoned at Tuol Sleng. The exact numbers are unknown.
For some horrific reason the Knmer Rouge deemed it was necessary to photograph each victim before they were killed. Their faces line the walls in the museum and help us to visualize the shameful, horrific and sad time of the past.