The Twilight of Civilizations

How did the most prestigious human civilizations decline and finally collapse? Archeologists are excavating the sites where these civilizations once thrived to find new answers to these crucial questions. [A French production with English narration]

Drastic and sudden climate change, religious and political struggles, societal upheavals -- all of these causes may have led to the decline of the civilization that left behind Angkor Wat. [A French production with English narration]