Buried nearly a mile beneath the Black Hills of South Dakota is a cutting-edge laboratory at the forefront of astonishing scientific research; experts reveal advancements engineers achieved more than a century ago that keep it operating today.
| Title | Underground Marvels - Season 2 Episode 4 Buried Lab of the Black Hills |
|---|---|
| Year | 2021 |
| Genre | Documentary |
| Country | United Kingdom, United States of America |
| Studio | Science, U&Yesterday |
| Cast | |
| Crew | |
| Alternative Titles | Underground Worlds |
| Keyword | |
| First Air Date | Oct 17, 2019 |
| Last Air date | Oct 07, 2021 |
| Season | 2 Season |
| Episode | 20 Episode |
| Runtime | 45:14 minutes |
| Quality | HD |
| IMDb: | 6.00/ 10 by 1.00 users |
| Popularity | 1.95 |
| Language | English |
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