1. Tuol Sleng Genocide Museum, also known as S-21, is located in Phnom Penh, Cambodia. It is a former high school that was transformed into a prison during the brutal Khmer Rouge regime, which ruled Cambodia from 1975 to 1979. The museum is a haunting reminder of the atrocities committed during this dark period of Cambodian history.

The museum displays photographs, personal belongings, and stories of the victims who suffered and died at S-21. The prison was used to torture and interrogate perceived enemies of the Khmer Rouge, including intellectuals, government officials, and even members of their own party. An estimated 17,000 people were imprisoned at S-21, with only a handful surviving.

The rooms at S-21 still contain the original metal beds and torture equipment used during interrogations. The walls are covered with haunting photographs of the prisoners, many of whom were children. The museum serves as a powerful memorial to the victims and a stark reminder of the horrors of the past.

2. The Tuol Sleng Genocide Museum (S-21) is open every day from 8:00 AM to 5:00 PM, including public holidays. The museum can be contacted at +855 93 936 235.

3. The entrance fee for Tuol Sleng Genocide Museum is $8 for foreign adults and $5 for foreign students. Cambodian citizens and students enter for free. Audio guides are available for rent at an additional cost of $3.

Transportation to the museum can be arranged through tuk-tuks, taxis, or motorbike drivers in Phnom Penh. It is approximately a 15-minute drive from the city center.