Well check out the Examinator Web Reference App. It's goal is to demonstrate and document everything from "Build and test" to "Deployment" for a high scale, realistic, web application. It strives to be well written and as simple as possible while still being a good demonstration of best practices. It also strives to document all the relivant pieces so others can learn from it. This is quite a challenge and I'm sure dissagreement will exist on some of the choices. I think it's an excellent start and the right set of goals.
I love real examples and this looks like great.