Mysteries of the Abandoned Season 6 Episode 8 - The Thing on Hell Mountain

Airdate: 2020-May-14

Episode summary:

A massive, alien-like fortress built into a mountainside is the central node to a network of pipelines that race outwards like tentacles; behind-the-scenes access reveals the secrets of why this strange complex was built and why it was abandoned.

About Mysteries of the Abandoned series:

Some of the world's most incredible engineering projects now lie in ruins. These deserted places are home to extraordinary mysteries and untol...Show more >