Ross Kemp lifts the lid on one of the most shocking secrets in British history: how Nazis became our neighbours.
Do mermaids exist? Probably not, but there have been plenty of hoaxes. From the Fiji mermaid to a TV mockumentary, here are four of the best fakes.
Did Plato describe a real lost city when he spoke about Atlantis or did he invent a warning? Bradley Walsh investigates in Out of this World.
Triads vs Yakuza - how do East Asia’s two most notorious crime syndicates differ? Here’s how their origins, structure and rivalry compare.
In 2011, treasure hunters found a disc-shaped object on the Baltic seabed. Is it a crashed spacecraft or just a rock? Bradley Walsh investigates.
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