Great Mosque, Damascus

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains two squares.
• Contains one regular two-pointed star polygon with vertex angle of 45°.
• Contains two regular octagons.
• There are three non-regular reflective tiles (including one kite).
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 403 polygons.

1. Photo by David Wade: SYR 0127 (Great Mosque, Damascus, Syria) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}

• Wade photo SYR 0127

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