Retro-nostalgic, mixed up with Open Street Maps result in this alternative city maps of different metropoles: The 8-bit city project delivers maps from cities like New York, Paris, Berlin, London or Amsterdam. The maps are really generated from data of the Open Street Map project and a bunch of open source tools and custom code – transformed into really oldschool-looking tilemaps. You can even make street-searches on the maps!
The project was initiated by Brett Camper, a look in his portfolio is worth it. Interesting projects ahead.