Adam Adamowicz, R.I.P., was a fantastic concept artist that developed a great amount of sketches for Fallout 3. A bunch of his designs didn't make it to the game, which was a real shame since each of them is a piece of art.
I like this one a lot:
I think it would have been cool if you could sit in a Tranquility lounger and play a simulation where you can enjoy the sight of a part of DC/town as it was before the great war...Tranquility lane is very beautiful, but I was thinking in an urban environment, with business and traffic...
Saints row IV SPOILER!!!
This game had just what I'm talking about, and its wonderful!
Maybe you could play a mission with the purpose of breaking free before the bombs fell, so maybe you'll get to see what appears in the concept art.
Do you have a favorite one?.