I totally agree with going to such a place to learn about a country's history, no matter how challenging it is. The exhibition is outside the city, not very far by car, and it takes only30-60 minutes to visit the entire exhibition. The main feature is the Mine Display Zone, which has six rooms spread over the central area, each with displays, information and stories about the country's history. The museum's founder has devoted his life to discovering, removing mines and many bombs left over from war. I hadn’t realised before the Vietnam conflict had affected Cambodia. The guides were all volunteers (you can choose voluntarily), and our guide lost his leg while playing near home 20 years ago. The ticket is $5, but you know it’s a great cause. You do see a lot of people with limbs in and around the town, and this place will let you understand things you can't understand in the town.