Curated OER
Washington, D.C. Map
Here is an outline map of Washington, DC. Some of the points of interest in the city are labeled, as are Maryland, Virginia and Arlington. There are plenty of important monuments and locations not identified, making for a good...
University of California
Us Geological Survey: Cartogram Central
The USGS offers detailed information on Types of Cartograms, Congressional Districts, Software for Cartograms, Publications, and a Carto-Gallery.