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Underground Marvels poster

Underground Marvels (2019)

Documentary

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

IMDb rating
6.9 (64 votes)
Seasons
1
Streaming (US)
Amazon Prime Video · Discovery+ Amazon Channel · Philo · Science Channel · Discovery + · Spectrum On Demand
Language
EN
Type
TV series
Browse seasons by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Jul 3, 2026 · 1 season indexed

Cast

Seasons

Season 1 (2019)

7.89 avg 7 episodes 7.9 → 7.4 44 min avg

Ep 1: 7.9 · 13 votesEp 2: 7.8 · 12 votesEp 3: 8.1 · 10 votesEp 4: 8.0 · 10 votesEp 5: 8.2 · 8 votesEp 6: 7.8 · 9 votesEp 8: 7.4 · 6 votes
Season 1 episodes — IMDb ratings
#TitleRatingVotes
1Gibraltar7.913
2Sweden7.812
3Switzerland8.110
4Kingdom of Salt8.010
5Bouzincourt8.28
6City of Naours7.89
8The Maginot Line7.46

Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-07-03.

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