Located in the dusty outskirts of Phnom Penh lies Choeung Ek, the most infamous of Cambodia’s killing fields. Once a peaceful longan orchard, it now stands as a site of incomprehensible horror and grief. While over 300 killing fields have been identified throughout the country, Choeung Ek alone bore witness to the execution of more than 17,000 men, women and children during the Khmer Rouge regime.