Tuol Sleng (S21)

Tuol Sleng (S21) is an unsuspecting group of buildings in a quiet residential neighbourhood. However, behind the seemingly standard fence and gates, lies a museum and memorial for some of the most tragic events that happened during the Khmer Rouge regime from 1975-1979. Once a high school, the buildings and its rooms were transformed into a torture, interrogation and execution centre for those suspected of “anti-authority behaviour”.
The activities in the centre were well documented by the Khmer Rouge and some are on display for visitors. Some rooms have been left untouched, and are just as they were discovered by Vietnamese invaders. Photographs of men, women and children haunt an entire room, providing visitors with a personal insight into those who suffered.

The museum also provides detailed accounts of activities of the Khmer Rouge and the stories of those who came through S21—most of whom passed away later at the Killing Fields. Although a simple exhibition, the genocide museum is an important part of Cambodian history and sheds light on the madness of the Khmer Rouge communist regime.
Entry is $2 and guides are available to show visitors around and answer questions.