Did Vikings visit America in the distant past, leaving evidence by carving runes on a massive stone in eastern Oklahoma? It's still a mystery.

The purpose of these so-called 'sun stones', and the reasons for throwing them into ditches en masse, have been something of ...

Members of a Stone Age culture in Denmark may have ritually buried stones to counter the effects of a volcanic eruption.

Hundreds of stone artifacts discovered on a Danish island may have been offered to the gods to ward off a climate crisis.