A variant of semi-detached house. In contrast to the latter, this one is a model set with p-adic internal space.
A member of an infinite family of substitution rules for similar quadrangles possessing two right interior angles at opposite vertices. A big copy of such a quadrangle can be divided into (smaller) similar quadrangles in several ways. Some of them are compatible with a substitution rule. This sone is the smallest possibility, using three [prototiles] (
A tiling with fivefold symmetry using tiles inspired by Islamic Girih patterns.