Ben Youssef Madrasah, Marrakesh
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- The symmetry group of the tiling is *442 (p4m).
- All the internal angles of the constituent polygons are a multiple of 22.5°.
- Contains 7 regular two-pointed star polygons with vertex angle of 45°.
- Contains 8 regular 8-pointed star polygons with vertex angle of 90°.
- There are 12 non-regular reflective tiles (including one kite and one dart).
- The tiling satisfies the interlace condition and has three finite interlaces and two infinite interlaces with straight cross-overs.
- The tiling is edge-to-edge.
- As drawn, contains about 1365 polygons.
- Photo from Nick Crossling (Ben Youssef Madrasah, Marrakesh, Morocco) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]