Topkapi Saray, Istanbul

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 18°.
• Contains one regular five-pointed star polygon with vertex angle of 36°.
• Contains one regular five-pointed star polygon with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 6 non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 291 polygons.

1. Photo by David Wade: TUR 0212 (Topkapi Palace, Istanbul, Turkey) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo TUR 0212

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