Reading Between the Lines of Nazca

Kathy Miles writes "About 2000 years ago, the people in an area of Peru etched drawings in the ground so large that they cannot be seen easily except from high above the ground. Many explanations, some far into the realm of science fiction, have been offered for the lines but now two archeologists think they know why the drawings were made. They believe that the area was then desert and that the drawings were all about water."