Book Mark - Crop Circle

The design of this bookmark is inspired by an intricate crop circle spans a diameter of more than 45 metres in a barley field close to Barbury Castle near Wroughton, England, about 130 kilometres west of London, in 2008 (Located in :51°29'19.3"N 1°46'18.9"W). The circle is noteworthy for its complexity, representing the first 10 digits of the mathematical constant pi, or 3.141592654.