City of Naours
Underground Worlds

City of Naours


Season 1 / Episode 6

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
Running Time - 1h
Country - GBR
Language - en-GB
Original Air Date - Monday 12th August 2019

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