euclidean cities

I am currently reading Mapmatics: How We Navigate the World Through Numbers by Paulina Rowińska.[1] Chapter 4 — Distanced — starts by discussing homeomorphic representations that distort distances but preserve connections, such as Harry Beck's map of the London Underground. This leads into a brief section critiquing the isochrones on the maps dotted across London that aim to depict where you can walk to in 5 or 15 minutes, but actually show where a crow could fly to, because they don't pay any attention to the street network. In some silly little corner of my silly little head, a silly little seed was planted. By the time I'd finished reading the next section where euclidean distance and manhattan distance were introduced, that seed had taken root and grown into a fully formed silly little question. what's the most euclidean city? Buildings and railways and rivers and churches and other people's homes all have a habit of getting in the way. From where I am currently sitting, it is a…