The idea that aliens assisted the builders of ancient monuments was promoted by the Swiss author Erich von Däniken in his bestselling book Chariot of the Gods – published in 1968. Von Däniken died in January 2026, but his vision of ancient astronauts still captivates millions.

The author had pointed to ancient structures such as the pyramids, along with enigmatic ancient artefacts, as supposed evidence that beings from beyond Earth shaped the civilisations of the past.

Though these ideas have been repeatedly debunked, television shows such as the History Channel’s Ancient Aliens continue to air similar narratives.