Video from Fall of Civilizations
"Deep in the Cambodian Jungle, a ruined city crumbles among the roots of banyan trees. In this episode, we look at the Khmer Empire of medieval Cambodia, and the ancient mega-city of Angkor. I want to explore how this great civilization rose to a size and wealth virtually unprecedented in the world, how it overcame the challenges of its climate and landscape, and all the factors that led to its final, dramatic collapse." from video introduction