3D CAD software: Google sketchup

Great Free 3D CAD software, easy-to-learn 3D modeling program. Build your own buildings, navigate into them and export them to google earth.

Modern structures: Building big

Explore large structures and what it takes to build them, Understand the challenges and possible solutions. This site covers dams, Buildings, domes and tunnels.

Traditional structures: Ways of building

A review of the traditional building construction principles.