DAsH

Maps collected by the Library of Congress that record the evolution of cities.

The Library of Congress's collection of bird's eye view maps of cities, a popular method of cartography in the late 19th and early 20th centuries.

The Library of Congress's collection of maps of transportation and communication systems on national, state, and local levels.

A valuable resource for historical maps of all kinds

A collaboration between Klokan Technologies and the Great British Historical GIS project this site indexes over 400,000 maps from various archives and libraries onto the world map.

From the University of North Texas, maps digitized from their collection as well as links to other maps of interest.