[Ichneumon]

["Why are they made?"]

For artistic reasons, for a challenge, and for fun.

And for attention, and for financial gain (instant tourist attraction, etc.), and for getting a laugh out of the hordes of "paranormalists" who declare that the prank "couldn't possibly" have been made by any process known to man.

Etc.

[Long Cut]

I find it strange that so many people are so willing to suggest that "XXXX couldn't possibly be manmade!"

We've even heard that about the Pyramids. Seems some people sell the human mind and ingenuity very short.

Cripes! We've been to the moon and space, to the depths of the ocean, mapped the human genome, and a host of other accomplishments. why should making cicle designs in crops be so difficult?