Dag Hammarskjöld Map Library - Want to find a good map of a UN member country? How about the country's flag (with appropriate PANTONE colors)? Start at the UN's official map library!
Map Collection at the University of Chicago Library - located on the 3rd floor of the Reg. Come upstairs and take a look at historical urban/city maps and thematic maps.
Perry-Castañeda Library Map Collection - at the University of Texas-Austin. One of the nation's premier map collections, the PCL not only has links to digitized material from its own collections, but also links to current-interest maps from other sources.
Tentative Agenda for Off-the-Record NSC Meeting, October 21, 1962. From the DNSA.