Recreating Angkor Wat: The 12th Century Cambodian Capital | The City Of God Kings

Originally a Lost Worlds episode, this documentary mixes staged visualizations of 13th century Angkor (including a fetching Zhou Daguan impersonation and 3D images of supposed Angkor Thom urban landscape), interviews with renowned researchers such as Elizabeth Moore, Charles Higham, Christophe Pottier and Jacques Gaucher, NASA and Lidar footage, and the usual speculations around the decline and fall of the Khmer Empire.

Of note: Jacques Gaucher's hypothesis that the Angkorean water management system was "so sophisticated it might have become unsustainable".