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Underground Marvels
Documentary

Underground Marvels

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

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Created By

Status

Returning Series

Original Name

Underground Marvels

First Air Date

October 17, 2019

Last Air Date

October 7, 2021

Seasons

2

Episodes

20

Language

English

Medieval Maze of Secrets
S02E10

Medieval Maze of Secrets

A forgotten world of ancient underground passages and medieval engineering lies hidden beneath the town of Exeter, England; experts investigate and reveal how this ambitious tunnel system was the result of one of the deadliest epidemics in history.

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