Penrose tiling

Penrose tiling is based on Golden Ratio (a=φ:b=1), but you can't use this rhombus because of aperiodicity.

{a: Kite}

{b: Dart}

You connect these Kite and Dart randomly. Then you see tiling like these.

This is like the Maurits Cornelis Escher's painting, but it is periodic.