In this first paperback edition, the author of "Chariots of the Gods?" and "Return of the Gods" maintains that massive earth etchings in Nazca, Peru, are actually "landing strips" used by aliens. Full-color photos.
The author describes the earth etchings of Nazca, and traces the history of the theories about their origin and purpose. The solution he puts forward is that at some point in the past, extraterrestrials landed at Nazca in their space machines.