30 Unusual Archaeological Finds In The US We Still Can’t Explain

14. THE SUSPENSE OF DIGHTON ROCK

Archaeologists and academics in other scholar fields can’t understand the petroglyphs carved on the Dighton Rock in Massachusetts. More than 100 books and articles talk about the petroglyphs and over 35 hypothesis arose, but no one knows what they mean or who made them. Some explanations suggest Native Americans or even Chinese or Japanese people were behind them. How can that be possible, though? Some researchers say the markings reveal their visits to America, but no one knows for sure what the glyphs mean.