You will be picked up from your hotel at the preferable time you selected by a shared A/C transport to visit the highlights of Phnom Penh and learn more about the history of Cambodia from our professional tour guide, starting with S-21(Security Prison 21)of Tuol Sleng that was In 1975, Tuol Svay Prey High School was taken over by Pol Pot’s security forces and turned into a prison. Spend time discovering the harrowing truths of the prison, and then drive to the Killing Fields of Choeung Ek, located about 16 kms south of Phnom Penh. You’ll visit the memorial built in memory of the more than 17,000 victims who were killed at Choeung Ek by the Khmer Rouge. Transfer you back after this half day tour completed.