Ascend to the heavens by visiting Angkor Wat, and descend to the pits of hell at the Tuol Sleng Prison. With a history that inspires and depresses, Cambodia provides an interesting present. Modern Cambodia succeeds the formidable Khmer empire, which governed much of Thailand, Laos, and Vietnam. The vestiges of the country’s glorious past are seen at the ancient Angkor ruins, monuments unrivaled in beauty and scale all over Southeast Asia. The first glimpse upon Angkor Wat offers the same sublime experience of seeing Petra in Jordan or Machu Picchu in Peru.