We delve into ancient mysteries that have remained unsolved for thousands of years.
How did 500 human skeletons end up in a remote lake high in the Himalayas?
In the early 1980s, one unusual Mesolithic burial discovered in Sweden sparked a lot of excitement.
Older than Stonehenge, Portugal’s Cromlech of the Almendres is one of Europe's largest megalithic sites.
In the Mahabharata, the ancient kingdom of Dwarka is said to have sunk beneath the Arabian Sea.
How a 3,800-year-old tablet has revealed just how advanced ancient Babylonian knowledge really was.
In 1993 the 2,500-year-old mummified remains of a woman were discovered in the frozen Ukok Plateau in Siberia.
The largest DNA sequencing of Viking remains to date reveals their surprising ethnic diversity.
An extraordinary discovery is shedding light on a medieval legend.
Over a century ago, divers discovered a shipwreck containing an ancient machine that rewrote human history.
The discovery of mysterious fossils by Israeli archaeologists alters our evolutionary history.
BEST OF 2019: Who's really buried in these intriguing monuments?
What made the Harappan civilisation leave their cities for the Himalayas?
Were the original inhabitants of the Canary Islands really survivors of the lost city of Atlantis?
Who were the mysterious skeletons found 100ft underground – and why were they there?
The Pulemelei Mound in Polynesia offers unique insight into Samoan history
In the south Australian countryside sits a mysterious Aboriginal stone arrangement.
A mysterious megalithic monument emerges from Spain's watery depths.