30,000 Years Ago Yesterday
The giant figures at Nasca illustrate the events in the Creation Texts of ancient Egypt, this article says, and have their origin in the Alaskan Era, 30,000 years ago.

The Lines of Peru
Fairly good overview of the mysterious Nazca Lines and the various theories surrounding their origin.

Nazca
Here are some excellent photos of some of the Nazca pictograms, including a bird, a "runway" and a figure this site calls an "astronaut."

New Ideas on the Nazca Lines
Were the Nazca petroglyphs created by Atlanteans - an ancient culture with flying machines?

Nazca Lines Point to Water Sources
A retired social studies teacher from Poughkeepsie, N.Y., believes the Nazca lines signify the underground flow of water aquifers.