Father of the ancient astronauts theory, Erich von Daniken is among a parade of authors on the History Channel’s Ancient Aliens. An article at history.com website provides a survey of the series. It’s a great primer of Ancient Astronauts Theory. You will see David Hatcher Childress, Michael Cremo, Giorgio A. Tsoukalos and George Noory, among others. You will travel to the Nazca Lines of Peru, Easter Island, Puma Punku of Bolivia and Mayan city of Palenque in southern Mexico. You can get a jump start by viewing series for free on You Tube. You don’t have to believe to enjoy, but the evidence is hard to ignore!