This is an example of what my friend and I call Grand Manner wargaming after the late Peter Gilder. The game board is 16′ by 4′ and as you can see contains an enormous amount of detail. The scale of the miniatures is 1/72 (slightly under one inch).
Grand Manner wargaming takes an enormous amount of effort and clearly a large space is required. Not all of our war games on done on this scale given our varied interests and time commitments. Nevertheless, a Grand Manner game is the pinnacle of a great game experience on a detailed lay out.
You can read about it in a little more detail here: Reconnoiter the Town.