Underground Worlds

Season 2 Episode 8: Buried Lab of the Black Hills

Exploring a former gold mine turned scientific laboratory in South Dakota. Plus, limestone tunnels in London and a former water cistern in Denmark.

Genre:

Documentary

Seasons:

2

Episodes:

20

Actor:

Chris Jarman

Quality:

HD

Status:

Returning Series

First Air:

2019

IMDb:

8.0