Crop Circles

Crop Circles in the UK

(Handy Marks Photo)

This massive 780-foot (238 meters) crop circle appeared in 2001 in the remote area of Milk Hill in Wiltshire, England. The elaborate design is composed of 409 circles that form a pattern called a double, or six-sided, triskelion, which is a motif consisting of three interlocking spirals.

(Thomas J. Sutter Jr. Photo)

Another triskelion crop circle. The symbol can be used to represent cycles, progress or competition.

LiveScience Photo)

This design of three flying birds was created on 3 August 2003, in the county of Wiltshire in southern England. The birds, which resemble swallows, have ever-diminishing circles trailing behind their wing tips.