Forensic analysis of skeletons found in ash deposit reveal what happened to people in path of volcano.
The practice may have played a role in facing the Incas.
Gorm the Old gave the country of Denmark its name and now researchers can hold his skull in their hands.
If you donate your body to science, where does it really end up?
An ISIS member would enter the cell carrying a prisoner's amputated head, promising other prisoners a similar fate.