Big Void

Jan Francke: Scanning the Ancient World, with Ground Penetrating Radar

Earth AncientsAug 15, 2026

Geophysicist Jan Francke, known from Skinwalker Ranch and Oak Island, explains how ground penetrating radar lets researchers look inside ancient structures without damaging them, from Chichen Itza to the Nabataean city of AlUla. He takes apart the viral satellite radar claims of giant shafts beneath the Giza pyramids, noting that the original paper was retracted. He then reveals his own puzzling findings inside the Great Pyramid, including hidden tunnels behind the King's Chamber walls and capacitors that mysteriously gain charge in the Queen's Chamber.