I noticed a while back playing with google earth that if you take the ruler tool and trace a ray from the Nazca lines that quite a few of them intersect with known ruins...some quite some distance away.  I am not sure if it has any &quot;real&quot; meaning...but it was an interesting thing to play with.  For all I know it is irrelevant due to the errors on the google earth stuff or the curve of the earth...but it was still fun to play with.  Some of the intersections were all the way up in Mexico...some as close as the coast.