Mysterious crop circles appear in southern Russia

A farmer in Russia’s southern Republic of Adygea woke up to find his very own crop circles. No one understands how the six perfect formations, measuring 7-13 meters in diameter got there, and security reports seeing nothing during the night.

Two of the biggest circles contain a pierced hole about half a meter deep. The four circles nearby are smaller, but contain a small perfectly-shaped island of left-over wheat at the center .... http://rt.com