Parallel lines

This picture is of three coplanar parallel lines. It is found in one of the Nazca drawings, on the Nazca Plain. This picture was obtained from google images, under the URL http://www.bbxrafting.com/nazca-lines. This object shows parallel lines in the bird's tail, where the lines that make the feathers have the same slope, do not intersect, and are in the same plane. In the real world, this picture is visited by tourists every month, because it was made hundreds of years ago,and it is a great mystery how the natives did it without planes or a way to monitor their work from the air.