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

4:35

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 map of the UK with a red dotted line pointing to Scotland

Was this biblical artefact hidden in Scotland and was it a nuclear bomb? - Ancient Aliens

Giorgio A. Tsoukalos

Was the Isle of Man founded by magical aliens? - Ancient Aliens

Two young female hikers hugging

What is the mystery behind this deadly hiking trip? | An Unknown Compelling Force

A human and a car being beamed up by a flying saucer

If they get their way, none of us will be safe! - Alien Deception : The Biggest Lie In History

A class photo of students at Westall High School

Was this school really visited by aliens? - Westall 66: A Suburban UFO Mystery

Satellite image showing a line in a field that could be a UFO crash site

Is this the UK's Roswell crash site? - What On Earth?