As we learn object modeling in Rhino [which we will begin after Winter Break] we will be saving models to be used in other programs (like Bryce). Fortunately there are also web sites which sell and/or give away external models which you can use to build your 3D projects. For example, let's say you are trying to create a medieval scene with a knight on a horse, but you don't know how to "build" a horse. You can download a pre-built horse and place it in your scene.
So where can you get 3D models? Well, there are many in your L: Drive already. You can browse through those models [most don't have good descriptions] and experiment a bit.
There are also many websites where you can download models:
