Underground Marvels — Season 1, Episode 2: Mystery of the Lost Labyrinth
Documentary • 45 min • 2 seasons, 20 episodes • ★ 6.5/10
Episode synopsis
A strange, centuries-old labyrinth built into an abandoned quarry was built by an eccentric millionaire, and no one knows why; but now, a new excavation into this mysterious 9,000-foot tunnel system might finally reveal its dark secrets.
About Underground Marvels
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.