Choeung_Ek_commemorative_stupa_filled_with_skulls Published May 5, 2011 at 1168 × 1760 in Evening Prayer 5.5.11, Genocide Remembrance Monument at Choeung Ek, Cambodia, commemorates the murder of up to 2.5 million people by Pol Pot and the Khmer Rouge. The building, called a stupa, is filled with skulls. (Quaddell)