The narrator of Edwin Abbott’s classic Victorian satire *Flatland* is a commoner, a simple, two-dimensional square. He lives in a two-dimensional world filled with other flat characters: line segments, triangles, higher-sided polygons, and circles.

Circles, in Flatland, constitute the upper classes of society, but if Abbott’s humble narrator had been born in a different flatland, he could have been a square *and* a circle.

Impossible, you say? Allow me to introduce you to TaxicabLand. Read more on An Introduction to Taxicab Geometry…