image: Archway from the Darb-i Imam shrine, Isfahan, Iran (1453 C.E.), with two overlapping girih patterns. This image relates to an article titled "Decagonal and Quasi-Crystalline Tilings in Medieval Islamic Architecture" that appeared in the Feb. 23, 2007, issue of the journal Science, published by AAAS. The study was conducted by Dr. Peter Lu and colleagues of Harvard University in Cambridge, Mass. view more
Credit: Photo provided by K. Dudley and M. Elliff via <i>Science</i>-AAAS.