Chehel Sotoun Palace, Isfahan

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains 8 regular five-pointed star polygons with vertex angle of 36°.
• Contains five regular 10-pointed star polygons with vertex angle of 72°.
• There are 9 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has no finite interlace and four infinite interlaces with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 1487 polygons.

1. Flickr photo (Chehel Sotoun Palace, Isfahan, Iran, Ceiling) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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