References for various fundamental things - composition, balance of details etc. I don't have sources for most of these as its something that was lying on my hdd for a while, but you should be able to look it up through google images.
Mapping the Smells of New York, Amsterdam and Paris, Block by Block. Kate McLean, a designer and cartographer creates detailed smell maps of cities around the world
Keir Alexander -- Colle Del Salvatore (Saviours Hill)
Bo Lundberg # 10 - "Worldmap" Archival Inkjet Print
This is one transmit map that you’d likely be more than happy to frame and hang on your wall. Seoul graphic designers Zero Per Zero create colorful abstract compositions of the metro systems in Tokyo, Osaka, New York City and other cities around the world.