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)

Jason Fox on Battle Treasures pointing with his arm raised and looking at someone off screen

Foxy reveals a relic of the Anglo-Zulu War – Battle Treasures with Foxy and Bruce

Jason Fox on Battle Treasures looking at someone off screen

The dagger designed to catch a knight where it hurts – Battle Treasures with Foxy and Bruce

A photograph of seven men of different ages climbing the steps on to a passenger jet. They are seen looking in the direction of the photographer. The red and gold colours of the tailplane is visible, as are the words 'Braniff International' on the steps.

A camera frozen in ice exposes a chilling mystery – Secrets in the Ice

Bradley Walsh unveils the secrets of the Pyramids - Bradley Walsh: Egypt's Cosmic Code

Key art for The Last Burma Star featuring Major Levison Wood and Alex Bescoby

The Last Burma Star Premiere

Rylan Clark and Professor Alice Roberts stand in front of an evidence board

Reopening the 1566 Essex Witch Trials - Witches of Essex