There were also lots of filler buildings set outside the war walls to give the impression of larger city areas beyond what you could access. And, considering that all the transit tunnels turned to the right directly beyond the zone boundary, there's no telling exactly how much space could be considered 'official' between zones.
It would be nice to replace them with forests, other buildings, mountains or something... I just don't like seeing big forcefield walls in all of the paragon city maps in my videos and such. And Fog is a poor replacement
If you look at Top Cow 1, the very first page indicates that the stuff between zones is a lot of forest. There's also some buildings not inside the War Walls, which fits with what we saw in game, but not enough to actually match up. The walls are MUCH shorter in the comic, as well, and the implications of the sequence are that we're following a flying hero in first person as he / she flies to a battle in another zone.
While the war walls are a necessary conceit for server technology issues, and they were worked in to the game's story relatively well, it really did stretch the suspension of disbelief when no one (except Rikti drop ships) was able to fly over them, and no one tunneled under them.
And if the trains really are as shown in the comics, elevated over the areas between zones (and there's no in game indication that they're not like that) we really should have seen many more villain attacks on those parts of the train.
And Crimson_Oriole, while I do like what you've done, I don't think it was ever the intent that the zones were actually right next to each other. The original map that came with the game (
http://paragonwiki.com/wiki/File:CoH_GvE_Map_1_Front.jpg) does show space between zones (this was mentioned earlier). But I'm interested in the measurements you got in Icon....
Edit: Although the map does make it look like there's a whole city's worth of roads throughout the area, and not just in the actual zones... I wonder if the little roads lines
inside the zones match up with the actual zones...
As for the Red River, that was always a source of contention when the Hollows was added. I suppose the easiest way to explain it is to say that it used to be one river, until Talos Island happened.