Do you have a lot of time on your hands and/or are you trying to visualize a possible home remodel? Well, then you'll want to check out Google's answer to either dilema: Google SketchUp.
As described on the website:
Google SketchUp is a powerful yet easy-to-learn 3D software tool that combines a simple, yet robust tool-set with an intelligent drawing system that streamlines and simplifies 3D design. From simple to complex, conceptual to realistic, Google SketchUp enables you to build and modify 3D models quickly and easily. If you use Google Earth, Google SketchUp allows you to place your models using real-world coordinates and share them with the world using the Google 3D Warehouse.
Apparently, if you are remodeling your bathroom, landscaping your yard, or adding a deck to the house, the program with let you conceptualize it in living 3D faster than a speeding pencil and T-square. If you just want to use it to create virtual Frank Lloyd Wright buildings, you might want to check out the substantial amount of 3D Wright buildings and objects already in the warehouse...
and yes, Fallingwater is there waiting for you to download. Enjoy!
Images courtesy of Google