Build a Bridge! http://www.pbs.org/wgbh/nova/bridge/build.html

London Bridge and more: http://midtown.net/dragonwing/col9802.htm

http://www.balsabridge.com/images/clipart/clips.htm

Covered bridges... http://william-king.www.drexel.edu/top/bridge/cb1.html

Bridge links with pix of bridges http://si.unm.edu/abq_2001/mpadilla/mpadilla_wq/Webpgemp.htm

http://www.sparknotes.com/lit/terabithia/canalysis.html

http://www.brothersjudd.com/index.cfm/fuseaction/reviews.detail/book_id/457/Bridge%20to%20Te.htm