Noticed something else interesting.
When in the Necropolis I noticed you could open the Map screen and move it around and the entire Orchard could be viewed. Nothing is marked, so no hints, but the whole geography could be examined. When you step out the traditional fog of war returns to the map.
Same thing in GH.
In Meridia however, you can only see about one map width away on all sides, almost nothing of the whole map.
Same thing with Amrath...nothing beyond the central zone.