  |
Bridge of the Month Quiz - http://www.hevanet.com/bridgink/
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. |
| |
A Span For All Seasons - http://www.bridgemeister.com/
A collection of photographs of facilities and a large worldwide inventory of suspension bridges. |
| |
MrTunnel.com - http://www.mrtunnel.com/
Discusses many projects. |
| |
Bridgepix.com - http://www.bridgepix.com/
Contains photographs and scans of other media of subjects worldwide. |
| |
The Tunnel Page - http://home.no.net/lotsberg/
The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes. |