Plot: Beneath the surface of China lies the Longyou Grottoes. A breathtaking subterranean marvel featuring grand staircases, expansive hallways, and colossal ten-story columns carved from rock believed to be over 15,000 years old
Cast
Giorgio A. TsoukalosSelf - Ancient Aliens ExpertGiorgio A. Tsoukalos was 46 in Ancient Aliens Origins - Season 1 - Mysterious Underground Worlds (Episode 5).
Birthday: Tue, Mar 14 1978
Robert ClotworthySelf - Narrator (voice)Robert Clotworthy was 69 in Ancient Aliens Origins - Season 1 - Mysterious Underground Worlds (Episode 5).
Birthday: Mon, Oct 24 1955
Jason MartellSelf - Ancient Aliens ExpertJason Martell was >> in Ancient Aliens Origins - Season 1 - Mysterious Underground Worlds (Episode 5).
Birthday: Unknown Birthday
William HenrySelf - Ancient Aliens ExpertWilliam Henry was >> in Ancient Aliens Origins - Season 1 - Mysterious Underground Worlds (Episode 5).
Birthday: Unknown Birthday
David ChildressSelf - Author & ArchaeologistDavid Childress was 67 in Ancient Aliens Origins - Season 1 - Mysterious Underground Worlds (Episode 5).
Birthday: Sat, Jun 01 1957