Google Sketchup

Sketchup is a free, easy to learn modelling software, with which you can download models from the Google Warehouse for free.

shortcuts

• "l" for line

Other stuff

Placing a SketchUp model in Google Earth

See also

• Google Building Maker
• http://www.ohyeahcad.com/suanimate/
• http://www.hongkiat.com/blog/60-excellent-free-3d-model-websites/