The former school buildings hold prison rooms, photographs and records of the Khmer Rouge security system. Give the material enough time and space; it is not a stop to rush between lighter attractions. The museum's archives form part of the UNESCO-listed Cambodian Memorial Sites.
What to look for
Former classrooms retain evidence of their prison use.
Photographs and archives document people held at S-21.
Useful to know
Allow a quiet interval after the visit.
Check the museum’s current opening details before setting out.
Your next visit
Estimated · Declared scenario and planning estimates; no live opening, weather, queue or booking service.
Indoor visit · 80–120 min
World planning estimate; admission, opening, visit duration and access need checking.
