Shrine of Imam Reza, Mashhad

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 18°.
• Contains two regular two-pointed star polygons with vertex angle of 36°.
• Contains 11 regular two-pointed star polygons with vertex angle of 72°.
• Contains 8 regular pentagons.
• Contains 9 regular five-pointed star polygons with vertex angle of 36°.
• Contains three regular 10-pointed star polygons with vertex angle of 72°.
• There are two non-regular reflective tiles (including 2 kites).
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 658 polygons.

1. Page 10 (Shrine of Imam Reza, Mashhad, Iran. Entrance to the teahouse) of Javad Shafai. On decoration in Persian architecture and wood carving, Tehran, 1977. [shafai] {In Persian}

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