Shiawassee County Bridges Old and New - Collection of photographs together with limited construction notes. - http://www.shiawasseehistory.com/ironbridges.html
Trans-Siberain Railway - Large collection of photographs of bridges and tunnels. - http://www.transsib.ru/Eng/gal-br.htm
New York Bridges - Collection of black and white photographs by Dave Frieder. - http://www.davefrieder.com/index.htm
Charles Bridge Image Tour - Located in Prague, built in 1342 after a design by Peter Parler. - http://lava.ds.arch.tue.nl/gallery/praha/tcharles.html
Bridges - Christchurch City Libraries - Collection of historic photographs of early bridges. - http://library.christchurch.org.nz/heritage/Photos/Bridges.asp
Bridges 1893 - 1999 - A timeline gallery of bridges designed by the HNTB Corporation. - http://bridges.hntb.com/3_time.htm