Google Earth puts a planet's worth of imagery and other geographic information
right on your desktop. View exotic locales like Maui and Paris
as well as points of interest such as local restaurants, hospitals, schools, and more.
Google SketchUp (free) is an easy-to-learn 3D modeling program
whose few simple tools enable you to create 3D models of houses, sheds,
decks, home additions, woodworking projects – even space ships. You can
add details, textures and glass to your models, design with dimensional
accuracy, and place your finished models in Google Earth, share them with others by posting them to the 3D Warehouse, or print hard copies. Google SketchUp (free) is a great way to discover if 3D modeling is right for you. Google SketchUp is free for personal use.