The Stonehenge, Lake Michigan
Everyone knows of the massive stone structure in England known as Stonehenge, but there’s another Stonehenge located under the mysterious waters of Lake Michigan. The Stonehenge in Lake Michigan was discovered in 2007 at a depth of 12 meters and is believed to be around 10,000 years old. This mysterious structure has bewildered experts since it was discovered. It’s believed to be man-made because all the rocks measure the same distance across and this wouldn’t happen if it were a natural occurrence. No one knows why this structure was created or what its purpose was.