Choeung Ek (The Killing Fields)
The Cambodian genocide during the late 1970s ranks as one of the great horrors of modern history. Under Pol Pot's rule an estimated 1.7 million people (21 percent of the Cambodian population) were either ruthlessly slaughtered by the Khmer Rouge, or died of starvation. Choeung Ek was the extermination camp where the prisoners from S21 (now the Tuol Sleng Museum) were executed. Also known as the Killing Fields, after the movie of the same name, this football-field-sized area contains the mass graves of about 20,000 people, many of whom were tortured before being executed.
A tall Memorial Stupa has been constructed to commemorate the dead and more than 8,000 human skulls are displayed behind the glass. At the entrance, a handwritten sign in Khmer and English summarises the atrocities perpetrated by the Khmer Rouge. As a reminder of the reality of this great tragedy human bones are still frequently unearthed by heavy rains in the area, and many of the tour guides have personal stories to tell about their experiences during Pol Pot's reign. A visit to the Killing Fields is harrowing - and not suitable for young children - but it remains one of the most popular tourist attractions in Cambodia.
Address: Just over nine miles (15km) southwest of Phnom Penh