So theirs this website that allows you to copy satellite image of layouts of you're favorite cities and then export them as .osm files. What I found most interesting is that you can use that along with the .osm plugin for blender to create a layout of planes. I'm thinking it may be possible to take real life city layouts and turn them into a map. Theirs a bit of cleanup thought with the importing and exporting.
Here's the URL:
https://www.openstreetmap.org/#map=15/54.6777/25.3003
Here's the URL:
https://www.openstreetmap.org/#map=15/54.6777/25.3003