Everybody has a different style of gaming when it comes to role playing games. Some people use miniatures, other's don't; preferring a more narrative approach when it comes to combat. Of course this can have it's problems, and that's why I like the idea of a 3d table top. Battlemats are great, but if there is a model of the dungeon on the gaming table, then there really is no room for confusion. Some GMs go so far as to furnish the dungeons with models of furniture, treasure, basically, whatever is in the dungeon is going to be represented. The whole idea is "what you see is what you get".
Of course, this is par for the course when it comes to war gaming with miniatures. Scale modeled terrain is a big part of it, and there are plenty of websites that have tutorials, tips, and tricks for making your own terrain.
Terragenesis is a great forum for people interested in creating their own terrain!
Wow, this one is good also... Terrainthralls .
Skankgame has some great advice and tutorials on building terrain. Also make sure you check out Zombie town . Zombie town is not a nice place to visit, and you really don't want to live there. In fact drive through as fast as you can!
Combat Zone Chronicles has some great terrain building tips as well! Check this page out! Apparently Combat Zone is a game as well, but I've never heard of it until I found the website.
I may have already mentioned Abaroth's World , but it's so good it deserves to be spotlighted again.
There is so many good websites, blogs, forums for making this stuff I don't think I could list them all. If you're interested you should also check out the model building resources, scale model railroading, and yes, doll house miniatures.
It's probably a good thing I don't have much room, because I might try to build an entire scale model of a fantasy city!