Sky History2 The Quest for the Holy Grail: As the Third Reich rises to power, Himmler fixates on the Holy Grail as his and the Nazis' desperation to capture this ancient relic intensifies. 2026-08-05 From radioactive energy drinks to the appalling additives in your milk and bread, we uncover the incredible things people once ate without a second thought. 2026-08-05 As expansive military campaigns and raids by Dacian tribes begin to test the Roman Empire's finances, pressure builds on Emperor Domitian. 2026-08-05 The Legacy of J Allen Hynek: Was Dr Hynek right when he ultimately concluded that there is a non-human intelligence on Earth. 2026-08-05 Throughout the ancient world, there are depictions of mysterious figures that appear to be half-human and half-bird. 2026-08-05 Series investigating compelling UFO and alien cases by opening previously off-limits secret files. Does the mysterious Blue Planet Project hold the answers. 2026-08-06