This episode counts down ten artifacts that ancient astronaut theorists interpret as technological devices potentially left by extraterrestrial visitors. Among them is the djed pillar, a column-like symbol found throughout ancient Egypt including at the Temple of Seti I in Abydos. Giorgio Tsoukalos and other theorists argue the djed resembles a Tesla coil or electrical conductor, suggesting ancient Egyptians possessed electricity—a claim they connect to the Dendera light bulb carving, where a bulb-like image appears to rest on a djed pillar. The episode also references the Dropa Stones, mysterious grooved disks reportedly discovered by archaeologist Dr. Chi Pu Tai in 1936 in China's Bayan-Kara-Ula Mountains, though the summary cuts off before elaborating on this claim.
Mainstream Egyptologists identify the djed pillar as a symbolic representation of Osiris's spine or a stylized tree trunk, embodying the concept of stability and endurance for pharaohs—not a functional device. The absence of soot in tomb paintings is explained by reflected sunlight through shafts, oil lamps with clean-burning fuels, and the fact that many tombs were painted near entrances before sealing. As for the Dropa Stones, no verified archaeological evidence confirms their existence; the story appears to be a modern myth with no peer-reviewed documentation. Still, the episode offers a visually rich tour of genuinely enigmatic Egyptian iconography, inviting viewers to consider how ancient symbols acquire layered meanings across millennia—even if the electrical interpretation lacks scholarly support.
Easter Island / Rapa Nui
Chile · Polynesian (Rapa Nui)
Moai statues moved through anti-gravity or levitation technology
Henan Province Cave
China · Chinese
Ancient Aliens claims that grooved disks found in a cave in China represent mysterious ancient devices that may evidence extraterrestrial contact. The show suggests these artifacts could be evidence of alien visitation to ancient China.
Nan Madol
Micronesia · Saudeleur
Venice of the Pacific — built on artificial islands using massive basalt columns