Choeung Ek is the site of a former orchard and mass grave of victims of the Khmer Rouge about 17 kilometres south of Phnom Penh, Cambodia. It is the best-known of the sites known as The Killing Fields, where the Khmer Rouge regime executed over one million people between 1975 and 1979. Mass graves containing 8,895 bodies were discovered at Choeung Ek after the fall of the Khmer Rouge regime. Many of the dead were former political prisoners who were kept by the Khmer Rouge in their Tuol Sleng detention center and in other Cambodian detention centers. Today, Choeung Ek is a memorial, marked by a Buddhist stupa. The stupa has acrylic glass sides and is filled with more than 5,000 human skulls. Apart from the stupa, there are pits from which the bodies were exhumed. Human bones still litter the site. Choeung Ek, Phnom Penh, Cambodia, Asia.