When did Underground Marvels Season 1 Episode 10 air?
Underground Marvels Season 1 Episode 10 aired on December 26, 2019.


Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.

A mysterious cave system is home to some of the oldest human remains ever discovered, and today, the explorers and researchers investigating this site are uncovering shocking evidence of cannibalism among its Ice Age denizens.
Direct answers for episode-level questions and details.
Underground Marvels Season 1 Episode 10 aired on December 26, 2019.
This episode runs for approximately 45 minutes.
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