3.Go into research sections of libraries and ask to look at old maps. Make copies. Then turn them into your own. Several years ago a friend sent me a map of a small town in Holland, from around the 12th century. It has figures on the streets showing what commerce was done where. A youth is leading sheep down one path. On another is a wagon loaded with produce. The characters of the town are included with the simple street names. One day it will fit into a novel.
4.Look at old city maps or the tourist versions of historical towns. Then adapt the parts you want.
5.Take the maps and turn them backwards or upside down.
6.Or take various photographs or images and make a collage showing landscapes and buildings.