Secrets of the Sky Tombs
Season 44 Episode 1 | 53m 59s
The towering Himalayas were among the last places on Earth that humanity settled. Scaling sheer cliff sides, a team of daring scientists hunts for clues to how ancient people found their way into this forbidding landscape and adapted to survive the high altitude. They discover rock-cut tombs filled with human bones and enigmatic artifacts, including gold masks and Chinese silk.
Expired: 03/21/18Video has closed captioning.