Choeungung Ek Genocidal Center and Tuol Sleng

Choeung Ek Memorial.
http://www.cambodiatribunal.org/

Rice field located next to the mass grave site at Choeuung Ek over 17,000 men, women and children were found.  http://www.cekillingfield.com/

Tuol Sleng a highschool in the 60's turned prison and torture center in the 70's.
www.eccc.gov.kh/en

.....once a play ground for high school children.
www.yale.edu/cgp