First off, I want to say that this guy knows that Azeroth is scaled down in-game for convenience. So don't flame for that.
I was going through the official forums today and noticed this little number crunch-fest:
http://us.battle.net/wow/en/forum/topic/1869247673 (Warning: Contains math)
I must say that I'm intrigued that our in-game world is so small. Gives you something to think about before you complain that it takes too long to travel.
Who's in favor of an Azeroth theme park now?