The Tuol Sleng Genocide Museum is located in Phnom Penh, Cambodia, and serves as a memorial to the victims of the Khmer Rouge regime. Originally a high school, it was transformed into a prison known as S-21, where thousands of people were tortured and killed during the late 1970s. The museum displays photographs, personal stories, and artifacts that tell the harrowing history of this dark period. Visitors to the museum can learn about the atrocities committed by Pol Pot and his followers, who aimed to create an agrarian socialist society. The museum not only honors the memory of those who suffered but also educates people about the importance of human rights and the need to prevent such horrors from happening again.