Secrets Underground

9:00 PM to 10:00 PM

Monday 5 January

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 Channel at 9:00 PM, Monday 5 January. (Subtitles.)

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