A mass grave of the victims of the Khmer Rouge, The Killing Fields at Choeung Ek, Cambodia, Indochina, Southeast Asia, Asia

Bracelets left by burial pit in the Killing Fields where 1000s were killed by the Khmer Rouge, Choeung Ek, Phnom Penh, Cambodia, Indochina, Southeast Asia, Asia

A statue dedicated to those killed during the Khmer Rouge conflict at Choueng Ek, Phnom Pehn, Cambodia, Indochina, Southeast Asia, Asia

Concentration camp memorial, Sachsenhausen, Oranienburg, Brandenburg, Germany

Mass graves in Ploetzensee, partly unknown dead from the last months of the second world war, Berlin, Germany, Europe