Top: Recreation: Roads_and_Highways: Bridges_and_Tunnels:
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» 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.
» Bridgepix.com - Contains photographs and scans of other media of subjects worldwide.
» MrTunnel.com - Discusses many projects.
» A Span For All Seasons - A collection of photographs of facilities and a large worldwide inventory of suspension bridges.
» The Tunnel Page - The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes.
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