The Alhambra

• 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 square.
• Contains one regular octagon.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are 7 non-regular reflective tiles.
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 271 polygons.

• Photo from David Wade (Central motif) of Not specific. Personal Communication, Information sent to the author, 21 century . [pc]

• Wade photo SPA 0935x

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