We have taken many trips to Cambodia over the years, focused on the primary schools project.
The project is run with Save the Children and the Provincial Education Office of Siem Reap.
More at http://www.yatesweb.com
Tuol Sleng Genocide Museum in Phnom Penh. The site is a former high school which was used as the Security Prison 21 (S-21) by the Khmer Rouge from 1975 to 1979. As many as 20,000 prisoners there were tortured and killed.