Design-wise I think this is awesome!! Never mind all the staggeringly perfect references to pi, it even looks good!
The most complex, "mind-boggling" crop circle ever to be seen in Britain has been discovered in a barley field in Wiltshire. The formation, measuring 150ft in diameter, is apparently a coded image representing the first 10 digits, 3.141592654, of pi. It is has appeared in a field near Barbury Castle, an iron-age hill fort above Wroughton, Wilts, and has been described by astrophysicists as "mind-boggling".
Michael Reed, an astrophysicist, said: "The tenth digit has even been correctly rounded up. The little dot near the centre is the decimal point. "The code is based on 10 angular segments with the radial jumps being the indicator of each segment.
"Starting at the centre and counting the number of one-tenth segments in each section contained by the change in radius clearly shows the values of the first 10 digits in the value of pi." (Link)