Could a series of giant standing stones constructed some 12,000 years ago in Turkey represent the beginnings of the first civilised society and the birth of religion?
Does Christ's crown of thorns, worn during Jesus' crucifixion, now reside in Paris? A Jesuit priest investigates a thorn from the Crown that appears to miraculously bleed.
Around the world, bodies have been dug up with stakes, stones or knives driven through their hearts. One man suspects a link and goes on the trail of the world's oldest suspected vampires.
Flood stories, similar to the Old Testament tale of Noah's Ark, appear in ancient cultures around the world. Now new archaeological evidence may reveal the cause and location of this great flood.
New images of the Mona Lisa, taken to record its fading colours, may reveal more than cracks in the varnish. Follow the trail of a potential code in one of the world's most famous paintings.
The Incas ruled most of South America 500 years ago without a written language, but they may have had a three dimensional communication system made from knots.
Scientific advances since the Shroud of Turin was last tested in 1988 reveal letters hidden around the head of the mysterious religious relic - but who wrote them? And why?
Following clues in the Old Testament, an archaeologist believes he has discovered the location of the original cities of sin - Sodom and Gomorrah. Is this the origin of God's wrath on Earth?
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