I think with video games you have to have a suspension of disbelief. Skyrim, for example, is tiny. It's only a couple of square miles (if that). Most people live in cities with more area. Daggerfall is the largest and it's the size of Great Britain.

While it would be cool to play in something actually to scale, you wouldn't be able to play the game. It would be terabytes of information. Your processor and graphics card would explode trying to render the full distance of the horizon. Unless you're okay with having load screens every block, you're not going to fit a bunch of NPCs doing day to day stuff.

So something that's a far off ruin seems a lot closer than it is. I think if these places were to scale, it'd be more like traveling to a ruined castle in Scotland from England. Or perhaps an even larger distance, like if civilization was in Mexico and all the dwarves lived in Alaska where they died out.