Royal Palace, Fez

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 10 regular two-pointed star polygons with vertex angle of 36°.
• Contains 23 regular two-pointed star polygons with vertex angle of 72°.
• Contains two regular pentagons.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• There are 11 non-regular reflective tiles (including one kite) and one reflective pair.
• The tiling satisfies the interlace condition and has 8 finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 1071 polygons.

1. Fig 1.11b of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}
2. Photo Robert Harding Picture Library (Royal Palace, Fez, Morocco) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

v54