Underground Worlds

Season 1 Episode 6: City of Naours

An underground city beneath a forest in Northern France built to house 3,000 people, an ice cave under Iceland's biggest glacier, and a subterranean power station in London.

Genre:

Documentary

Seasons:

2

Episodes:

20

Actor:

Chris Jarman

Quality:

HD

Status:

Returning Series

First Air:

2019

IMDb:

8.0