Bridges and Tunnels

• North America

• Science: Technology: Structural Engineering: Bridge 

• Bridge of the Month Quiz  - Conducts a contest in identifying an image of a particular bridge. With gallery of photos.
• Bridgemeister  - Gallery of assorted photos depicting views of suspension bridges in different locations.
• Bridgepix  - Showcases various images of bridges from different locations. Includes a summarized description of each structure.
• Tyne Tunnel  - Discusses the tunnel's connections. With documentations of the tunnel's construction and policies.
• World of Tunnels  - Introduces different tunnels with details on discussions and other activities organized.
• World's Longest Tunnel Page  - Showcases different tunnels with length information. Also includes a categorized search according to their locations.