During Pol Pot's reign in the 1970s, his Khmer Rouge killed between one million and two million people in their communist revolution. Skulls, like these on display in the Tuol Sleng museum, are all that remain of the anonymous victims of genocide.
Take a trip and explore the Southeast Asian nation of Cambodia from Angkor Wat, the capital of the region's ancient Khmer empire, to Phnom Penh, the modern-day capital city.