Glaoui Palace, Marrakesh

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one regular octagon.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• Contains two regular 8-pointed star polygons with vertex angle of 45°.
• There are five non-regular reflective tiles.
• The tiling satisfies the interlace condition and has two finite interlaces and two infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 369 polygons.

1. Page 130 (Glaoui Palace, Marrakesh, Morocco. No colouring on original) of Jean-Marc Castéra. Arabesques: Decorative Art in Morocco, ACR Edition, Paris, 1999. ISBN 286770124. [castera] {Beautiful book.}
2. Position not recorded (House of Pilate, Seville, Spain. From ceiling of Praetor's Hall, no colouring in the original) of A. F. Calvert. Moorish remains in Spain, London, New York, J. Lane, Pressmark 18.F.85, 1906. [calvert] {586 pages} Available on Internet.

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