It's kinda lumped in with perspective, but I'd do one of a country using two different projections. Maybe one zoomed-out, transverse-Mercator with the country in question centered, and then another in a more bizzare projection. Or, alternatively, two different maps meant to convey different information: A regular old geographical map, and then one to show overland and sea shipping routes, with hubs, stops, and goods sources. Or a map to show magical ley lines in a fantasy kingdom. Or a map of the ancient civilization that preceded this one, with the borders and cities of the current one faintly overlaid on it.