Google SketchUp 6.4.120
Google sketchup it’s 3d software, you can make some 3d model of houses, sheds, decks, home additions, woodworking projects - even space ship, and after you finish you can post the result to google earth or just collect it. This free application but if you want to buy more advance you can buy the pro version with $495 (you can click on here).
If you mac user, you can try this application Google SketchUp 6.4.120 . But if you windows user you can try the Google SketchUp 6.4.11, for the requirement you can check on this area
This a quote that I pick from download.com
Developed for the conceptual stages of design, SketchUp is powerful yet easy-to-learn 3D software. We think of it as “the pencil of digital design”. This award-winning product combines a simple yet robust tool set that streamlines and simplifies 3D design. SketchUp is used by professionals and consumers alike. It contains a unique interface that allows 3D forms to be created, viewed, and modified quickly and easily. The core of its simplicity is that you draw the edges of the desired model in 3D space, just as you would using a pencil and paper. SketchUp infers your design intent and automatically determines the nature of the lines and fill shapes to create 3D geometry.
Version 6 adds the ability to create a 3D model from a photo and “Sketchy Effects,” among other new feature.
