3-D map based on General G. K. Warren's map from the Atlas of the Official Records. Dates from the 1950's, I've never seen another like it.
Gives you an idea of how much the terrain really influenced the outcome of the battle.
Eisenhower Hall at Ft. McNair has one similar to this. Also cool is the 3-D map from Richmond up to mid-Penn that drives home the events from Fredricksburg and Lee's and Hooker's/Mead's trips north. Will get a picture.
Sorry this took so long. First is the one I was talking about. Second one is actually a Rand-McNally pressed 3D that was in limited production. Providing link to hi-res as well.
I was just there a month or so ago. Neat stuff.