Planetizen, an urban design website, has a series of fantastic T-Shirts that showcase the plans of some major US cities. Available are Boston, New York, San Francisco, Chicago, Los Angeles, and Washington DC. The plans are similar to Noli Maps - the buildings are printed in solid white, while the space between the buildings is left blank. This creates a nice figure-ground effect.
The dark gray shirt with white print provides a classic, but still modern, look. Show your style and support your favorite city!
These screen printed shirts are pre-shrunk and Supersoft. Best of all, they are cut specifically for women - no more over-sized baggy shirts.