Game worlds are getting big. Like really, really big. Have you played Just Cause 2? That island is massive. In game world sizes it's practically a continent. Don't believe me? Well, I'll let someone else's photoshopping skills in the image below prove my point that I only made in the first place because I saw the image below.
courageousrobot over at Reddit got to thinking (possibly while attempting to run across Just Cause 2's entire map) and decided to compare some of gaming's biggest worlds by placing them over one another. As you can see game worlds have grown a bit, and by "a bit" I mean a very, very, very, very large amount.
Remember when Grand Theft Auto III came out and we were all amazed by how huge the city was? Now it looks like the kind of thing a girl couldn't help but laugh at if it was whipped out in front of her.