Underground Worlds

6:10 AM to 7:10 AM

Friday 20 September

Subterranean Silo Survival

Season 2 Episode 9 of 10

Exploring old tunnels in an abandoned tin mine beneath the moors of Cornwall. Plus, former Atlas missile siloes in Kansas and tunnels hiding under Valetta

Underground Worlds airs on U&Yesterday at 6:10 AM, Friday 20 September. (Subtitles, audio description.)

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