Google 3D Warehouse, the place where you can upload Sketchup 3D models for buildings, houses, stadiums and objects, has been redesigned and looks exactly like Google Video. The homepage features popular and recently uploaded models. If you click on one of the models, Google will locate the object on the map, you'll be able to download it in Sketchup or view it in Google Earth. There's also a description, a rating for the complexity of the model and an easy way to embed the model into a site.
You can also search for models and even build your own model and upload it to the 3D Warehouse. To build a model, you need to use Google Sketchup, a free software available for Windows and Mac. If you want, you can even build a virtual town with buildings, people, trees and vehicles.