Map and World help

I need a little help. Is it possible to do a Larger world map that you could move around on and when you get to an area you go to a world area thats just of the city or town or whatever you go to with Torque? I'm thinking something like you could travle between two cities and when you get to the second city you would go to a world with that city in the center and the nearby lands and towns being fully explorable if you want to.