Rand McNally pales in comparison. Mapquest certainly holds no candle. These maps were created by artist-engravers in Great Britain, published by the Society for the Diffusion of Useful Knowledge whose object was to "furnish the means of instruction to those who are desirous of acquiring it, and to excite the desire of those who are indifferent to it..."
I have defined a loose set of graphic rules for cohesion within what I intend to be a wide family of city maps. Some samples from my palette:
I do enjoy making lots of small lines under good light, trying to be conscientous, and thinking about things.