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)

A sign for the Ministry of Defence

Is the British government hiding its own Area 51? - Ancient Aliens

Curse of Skinwalker Ranch team inside a helicopter

Is a monster chasing the gang's helicopter? - Curse of Skinwalker Ranch

Members of the team looking to the sky

The gang's explosive rockets summon a UFO! - Curse of Skinwalker Ranch

David Childress

Did alien scientists morph human DNA? - Ancient Aliens: The Ultimate Evidence

Giorgio A. Tsoukalos

An ultra-powerful nuclear-fuelled super weapon? - Ancient Aliens: The Ultimate Evidence

Erik Bard working on laptop

Is this the gang's most daring experiment yet? - Curse of Skinwalker Ranch