The priceless painting by Renaissance genius Leonardo Da Vinci depicts noblewoman Isabella d’Este.
A boy who claimed to have spent five years living in the woods in Germany has been exposed as a fake.
An 11-year investigation in to the infamous 19th century killer has reached a startling conclusion.
A newly declassified document has revealed that the US came very close to a major nuclear disaster.
A mysterious man in full clown make-up has been spotted several times standing outside people's houses.
The research aims to provide a complete list of threats capable of bringing about the end of the world.
Authorities in Siberia have located a young man who had lived in the wilderness for almost two decades.
A strange man in a gask mask and military clothing has been sighted numerous times over the last decade.
Dhaqabo Ebba from Ethiopia claims to be almost 40 years older than the previous record holder.
Officials are investigating what could have killed more than 100 elk at a ranch in New Mexico.
The strange grinding noise is the latest in a long series of similar sounds recorded all over the world.
An Ohio man who was pronounced dead suddenly came back to life after his son called out to him.