Crop circles are created by fattening areas of crop such as wheat, corn or barely.
Surprisingly, over 90% of the world's crop circles are found in England - where I live...
Although now we know that crop circles are now the work of human pranksters, people used to believe that they were caused by freak weather or paranormal reasons (such as aliens or ghosts.)
Anyway, here are some interesting pictures.
|70-foot crop circle in Milk Hill, England|
|Mayan Crop Circle|
|Crop circle in Switzerland|