Crop Circles

The original crop circles were exactly that - circular patterns of flattened crops, often created in mysterious circumstances overnight. During the last 20 years, though, crop circles have evolved into complex geometric shapes, like the DNA double helix or the nautilus shell.

In 1966, an Australian sugar cane farmer said he saw a saucer-shaped spaceship rise up from a swamp before flying away. When he looked at the landing site, he found the reeds intricately woven in a clockwise direction on top of the water. There are many other anecdotal accounts of crop circles appearing in alien UFO literature, where sometimes the crops were burnt, otherwise flattened.

But in 1991, two men from Southampton, England, admitted they conceived the whole idea as a prank some 15 years earlier. They made their masterpiece using planks, rope, hats and wire - and could create a 40-foot circle in 15 minutes. The only reason they came clean was because one of the men, Bower, was running up considerable mileage on his car and had to convince his wife he wasn't having an affair. He continues to demonstrate the art today.