Secrets Underground

Rob Nelson sets out to explore hidden underground mysteries across the globe. His first investigation focuses on the enigmatic rocks lying on the floor of Lake Michigan, often referred to as the Underwater Stonehenge. These submerged formations hint at ancient human activity and spark further inquiry.

American Stonehenge is a television programme presented as a single episode. It falls within the genre of documentary‑style programming, focusing on unexplained phenomena and the natural world. The series is billed as an investigative look at hidden places, with each instalment meant to uncover a different mystery. The episode’s central figure is presenter Rob Nelson, who sets out to examine concealed geological features across the globe. His investigation begins in the United States, where he turns his attention to a cluster of unusual stones that lie on the floor of Lake Michigan. These submerged boulders have been dubbed “Underwater Stonehenge” because of their striking arrangement and the intrigue they inspire. Nelson’s approach involves probing the origins and significance of these lake‑bottom rocks, treating them as the first clue in a broader quest to locate other subterranean secrets. By focusing on the underwater formation, the programme establishes a template for the type of on‑site research and analysis that will be applied to later locations. The episode therefore serves as the opening chapter of a worldwide exploration, signalling that future installments will travel beyond the Great Lakes to seek out further hidden sites. In doing so, American Stonehenge aims to piece together a larger picture of the planet’s concealed natural wonders.