Secrets Underground

9:00 PM to 10:00 PM
Wednesday 30 July
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American Stonehenge

Season 1 Episode 1 of 8

Rob Nelson investigates subterranean secrets from around the world, beginning with mysterious rocks at the bottom of Lake Michigan known as Underwater Stonehenge

Secrets Underground airs on Discovery History at 9:00 PM, Wednesday 30 July. (Subtitles.)
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