Stonehenge..
Underwater Stonehenge in Lake Michigan Alters Understanding of Early North American History
Mysterious Underwater Stonehenge in Lake Michigan Rewrites Early Human History (Image: A boulder with a prehistoric mastodon carving found beneath Lake Michigan. Caption: The mastodon carving, confirmed by new scans, dates the site to around 7000 BC.) A 9,000-year-old Stonehenge-like structure discovered beneath Lake Michigan in 2007 is challenging our understanding of early human activity […]