Royal Palace Museum, Fez, Morocco

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains three regular 8-pointed star polygons with vertex angle of 90°.
• There are 8 non-regular reflective tiles (including one kite and one dart).
• The tiling satisfies the interlace condition and has two finite interlaces and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 243 polygons.

1. Page 101 bottom-right (Royal Palace Museum, Fez, Morocco. Ornate wooden door with no colouring) from [castera]
2. Page 63, middle right from [degeorge2]
3. Photo by David Wade: SPA 2505 (Alcazar, Seville, Spain) from [wadei]
4. Vol 1, page 210, top left (Colouring from here) from [paccard]

• Wade photo SPA 2505

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

v54