Washington, DC 40 inch map w/ street-level detail Poster

After searching far and wide for a printed map of Washington, DC that included street level detail, I decided to print one myself. The map is created from OpenStreetMap.org (copyright OpenStreetMap contributors, licensed under the Creative Commons Attribution ShareAlike 2.0 license). You can see every street and even the alleys on this map, which is why it has to be printed at 40" square. It's around 220 dpi. The map needs to be mounted unconventionally with the corner up instead of the edge because it was rotated 45° for printing. Arlington and Alexandria, VA are also included since they fit nicely in the square because they were originally part of the District of Columbia. This map contains no legend or scale.