1) Arabic architecture 
Girih (گره, `knot`), also girih sāzī (گره سازی, `knot making`) or girih chīnī (گره چینی), is an Islamic decorative art form used in architecture and handicrafts (book covers, tapestry, small metal objects), consisting of geometric lines that form an interlaced strapwork. In Iranian architecture, gereh sazi patterns were se...