Crystal skulls are not uncommon or terribly mysterious. Thousands are produced every year in Brazil, China, and Germany. But there are a handful of these rather macabre objects that have fueled ...

An analysis of the origins of seven severed skulls with nails through them shows that some people treated this way in Iron Age Spain were local while others came from afar.

But no one ever mentioned the skulls. "My ancestors didn't tell me anything about it. Maybe they were frightened," he told 7.30. Mr Tui can sit under a tree and look at the stone monument erected ...