Useful websites for research on buildings and structures

http://www.sciencekids.co.nz/sciencefacts/engineering/buildings.html (You will find sub-categories on the bottom right hand side of the page)
http://www.pbs.org/wgbh/buildingbig/index.html (Excellent website for sky scrapers, bridges, dams, tunnels and canals)
http://home.howstuffworks.com/home-improvement/repair/house.htm (Video included)
http://natgeotv.com/in/megastructures/videos (Watch as many videos as possible - select from the option 'videos' or 'shows')