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)

Travis Taylor looks at a monitor during an outside, nighttime experiment while other members of the team look on

Something responded to our experiment at Skinwalker Ranch - Curse of Skinwalker Ranch

Dolph Lundgren

The biggest airplane ever built - History's Greatest Machines With Dolph Lundgren

Curse of Skinwalker Ranch team members inspecting a screen

The Mesa is hiding something impossible - Curse of Skinwalker Ranch

A large elongated skull

Did archaeologists find non-human skulls? - Ancient Aliens

Military tiltrotor aircraft lands in a dusty desert as a soldier watches, from History’s Greatest Machines with Dolph Lundgren.

The secret helicopter that killed Bin Laden - History's Greatest Machines With Dolph Lundgren

Tom Hanks

The world left behind by the second world war - World War II with Tom Hanks