For the modern history of the world, people who know a little about it will know that the Khmer Rouge is almost equal to death for Cambodians. I don't want to talk about politics here, but when I come to Phnom Penh, for Cambodia, everyone should not just lament the exquisite architecture and art of Angkor. Skill treasures, for the painful memories of the Cambodian people, also need to know. Worth a visit!