Figure 1. Archway from the Darb-i Imam shrine in Isfahan, Iran, which was built in 1453 C.E. The larger pentagons outlined in pale blue were constructed using a large-scale girih tile pattern, and the small white pentagons were constructed using a small-scale girih tile pattern (Image courtesy of K. Dudley and M. Elliff).

Figure 1: The paper fortresses of Matrakçi depicted in his book Tuhfat al-Ghuzat (Süleymaniye Library, Esad Efendi, MS 2206).

Dr Salim Ayduz presenting his lecture.