4. Stonehenge-Like Structure Discovered at the Bottom of Lake Michigan
Place: USA’s Lake Michigan
Year Found: 2017
Estimated Value: N/A
While searching beneath Lake Michigan’s surface, archaeologists came upon something unsettling and incredibly cool. Scientists discovered a building like Stonehenge 40 feet below the Grand Traverse Bay’s surface using remote sensors.

Structure at the Bottom of Lake Michigan Resembling Stonehenge @historyhappyhr/Twitter
Many of us have watched movies about Stonehenge on The History Channel, yet nobody still knows how the ancient building was constructed. The enigma is only deepened by the discovery of a similar building beneath the waters of Lake Michigan. Along with this amazing discovery, the scientist also found numerous sunken cars and boats and a Civil War dock.
