As mentioned previously, about 17,000 men, women, children and infants who had been detained and tortured at S-21 were transported to the extermination camp of Choeung Ek.  They were often bludgeoned to death to avoid wasting precious bullets.

The remains of 8,985 people, many of whom were bound and blindfolded, were exhumed in 1980 from the mass graves; 43 of the 129 communal graves have been left untouched. Bones and clothes still lie scattered around the graves – harrowing stuff.

More than 8,000 skulls, arranges by sex and age are visible behind the clear glass panels of the Memorial Stupa.  It is a pretty peaceful place today, masking the horrors that unfolded here less than three decades ago.