Atlas of Historical County Boundaries
The Atlas presents in maps and text complete data about the creation and all subsequent changes (dated to the day) in the size, shape, and location of every county in the fifty United States and the District of Columbia.
An Atlas of the Universe
Maps of the Universe, arranged according to distance from Earth, as well as extensive links to related sites and a glossary. Nine major maps link to related maps and descriptions.
National Geographic Map Machine
Terrific site for geography classes. Maps are from the NGS 1995 atlas. General information about each country or state includes area, population, flag, religion, language, and other demographic data.
Interactive site for mapping data for the entire United States.
NYPL Digital Gallery
Browse or search The New York Public Library digital collection of 275,000 images (more coming) from primary sources and printed rarities, including illuminated manuscripts, maps, posters, prints and photographs ephemera, illustrated books, etc.
Atlas of Canada
The Atlas of Canada Web site will provide the most interesting, dynamic and comprehensive collection of maps and related information about Canada available anywhere on the Internet, with effective and intuitive tools for users to access them.