The United States Geologic Survey is having a deep sale on hundreds of maps. To better decorate my office, I am picking up a few.
Two that might be of interest to the political science crowd: US Command distribution across the globe:
The historical presidential elections map is also good:
Michael A. Allen is an Associate Professor of Political Science at Boise State University. His research focuses on international conflict, military alliances, and quantitative methods in international relations and comparative politics.