Zimmer says "The Commonwealth itself is nothing but a war-ravaged quagmire of violence and despair. Inside the sealed environment of the Institute, however..."
So, I doubt it's much different from the wasteland.
The Institute -- that's pretty much what I meant.
I'd also love to see all the pre-war houses & buildings before the bombs fell, and seeing the Vault experiments take place -- it'd probably be horrible, but very interesting, too.