2 Season
20 Episode
Underground Worlds - Season 1 Episode 2 Sweden
Explores how Sweden has gone to extraordinary lengths to protect itself - by excavating 65,000 nuclear bunkers. Plus, Somerset's Cheddar Gorge and an underground first in Romania.
- Year : 2022
- Country : United Kingdom
- Genre : Documentary
- Studio : U&Yesterday
- Keyword :
- Director :
- Cast :
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