Wheat Graffiti [1]: \"They show...

Wheat Graffiti: "They show up every summer, spirals and interlocking rings, alchemical and shamanic symbols, massive mandalas and Mandelbrot sets, all cut into swaths of land - some as large as two football fields set side by side. These patterns, made from swirled wheat and flattened rapeseed, first appeared in the fields of southern England 30 years ago. Their mysterious origin caused a media frenzy until 1991, when two local farmers claimed responsibility for a few of the early formations. The press, satisfied that the whole thing was a hoax, decamped. But crop circles never went away. From the Netherlands to Japan to the farmlands of Canada and the Midwest, hundreds of new glyphs materialize every year - and they're growing in both size and complexity."