A Span For All Seasons A collection of photographs of facilities and a large worldwide inventory of suspension bridges. http://www.bridgemeister.com/
Bridge of the Month Quiz An image is posted inviting entrants to identify the feature. A free copy of a book on the subject is awarded to one correct entrant per month. http://www.hevanet.com/bridgink/
Bridgepix.com Contains photographs and scans of other media of subjects worldwide. http://www.bridgepix.com/
International Peace Highway Project International Highway Construction Corporation, supporters of a highway system connecting most of the world which would include a Bering Strait bridge and Japan-South Korea tunnel. http://www.iijnet.or.jp/IHCC/index.html
The Bridges Project Online database of significant bridges compiled by the Department of Civil Engineering at Rice University. Includes photographs. http://bridges.civil.rice.edu/
The Tunnel Page The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes. http://home.no.net/lotsberg/
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