Room Three: Fantastic (p.80-82)
Signifier and signified in crop circle photograph.
In this case, the signifier (the form of a sign) is the crop circle while the signified (the concept of a sign) is the existence of paranormal or extra-terrestrial forces. It seems that one of the reasons why crop circles are linked with these unknown forces is that they are mostly found in places with a history of paganism and New Age mythology, as well as places with ancient earthworks. Crop circles enthusiasts connect these places of spiritual and historical relevance with the geometrical patterns and believe this to be anything but a coincidence.
Dean, T. and Millar, J. (2005) Art Works: Place. London: Thames & Hudson.