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 three squares.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 207 polygons.

1. Page 61 (top) (Great Mosque, Damascus, Syria) of Henri Stierlin. Islam: Early Architecture from Baghdad to Cordoba, Volume 1. Taschen, 1996. ISBN 382288561. [stierlin]

Photo?

v54