Theories are cropping up to explain an intricate circular pattern discovered in a field of grass in California early Monday. An aerial photographer spotted the giant crop circle in Salinas, Calif., ...

Crop circles have fascinated people for decades. In the early 1970s, many of these structures began appearing in fields and pastures, mostly in Southern England (as an aside, crop circles appear to be ...

Mysterious crop circles have been discovered etched into fields in one of the world's most famous UFO hotspots. Wiltshire in the UK has become the epicenter of the phenomenon since the 1970s, and the ...

Here, an intricate crop circle that appeared in front of the Torrechiara Castle in Parma, Italy, during the summer of 2009. When a four-part crop circle pattern roughly resembling a Mickey Mouse head ...

SEATTLE -- Mysterious crop circles have appeared in an eastern Washington wheat field -- not far from the nation's largest hydropower producer -- but area farmers preparing for the summer's harvest ...