Did Da Vinci hide clues in his art? - Digging For The Truth | Sky HISTORY TV Channel

Did Da Vinci hide clues in his art? - Digging For The Truth

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What (or perhaps who) is the holy grail? And could a descendant for Jesus and Mary be walking the streets today? (Season 2, Episode 4)

Digital rendering of a mysterious structure buried in the side of an iceberg

Mysterious structure spotted buried in an iceberg - Secrets in the Ice

Adolf Hitler and Eva Braun

Did he really escape? - What On Earth?

Curse of Skinwalker Ranch team looking at lasers on a screen

Shock as lasers trigger erratic UFO encounter - Curse of Skinwalker Ranch

J Allen Hynek

People don't know that 'Close Encounters of the Third Kind' of was based on this man - Ancient Aliens

A firing cannon

How the Royal Navy became an empire-building behemoth - Britain's Most Historic Towns

An elaborate maze cut into a field

What is the mystery at the heart of this Elizabethan maze? - What On Earth?