See also:
This category in other languages:
Metro Bits - Exploration of subways around the world, including arts and architecture, logos, unique destinations, FAQs and trivia, and pictures.
Chris's Transit Pics Website Showcases photographs of subways, buses, railroads, and monorails from a variety of locations. Also features transportation information for tourists in New York City. http://www.transitpics.com
Flickr: Subway Subway, metro, underground, skytrain, mono-rail, MRT, MTR... the self portrait spirits of city. http://www.flickr.com/groups/79171409@N00/
Flickr: Subway photos Photos of people waiting for their train, taking a ride home, or abstract photos of the subway itself. http://www.flickr.com/groups/63933506@N00/
Flickr: Underground Subways Images of underground railways and subway systems from around the world. http://www.flickr.com/groups/37967112@N00/
Subway Navigator Maps and stations of subways and other heavy rail transit systems throughout the world, and a route finder detailing the path between any two stations. http://www.subwaynavigator.com/
The Subway Page Maps for subway transit systems from a number of cities all over the world. http://people.reed.edu/~reyn/transport.html
TubeMap.com Provides direct links to route maps from subways around the world. http://www.tubemap.com
UrbanRail.Net Information on subway systems organized by continent, and news, links, literature, and a gallery of general subway information. http://www.urbanrail.net/