Scientists explore mountain tombs in the Himalayas, revealing ancient secrets about the people who settled there, including rituals to ward off restless spirits.
Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.
NOVA - Secrets of the Sky Tombs Synopsis and Schedule