STRUCTURES WEBSITES:
http://www.pbs.org/wgbh/buildingbig/
http://www.takus.com/architecture/
http://www.architectstudio3d.org/AS3d/index.html
http://www.ducksters.com/history/renaissance_architecture.php
http://www.arteducators.org/news/national-convention/presentations2
http://wafonline.org/architecture-schools/kids-tour