Sanxingdui — Eyes Cast in Bronze

A civilization that flourished for a thousand years left no written record — only bronze masks with eyes that extended sixteen centimeters from the face. They built a city of thirty thousand people on the Chengdu Plain, cast bronze trees nearly four meters tall, and then burned their most sacred objects in sealed pits and disappeared from the historical record entirely. An hour of ancient history and forgotten civilizations, told for sleep. No answers. They have not stopped looking.