Campaign Cartographer 2
This software program allows you to take your gaming world to a whole new level. Whether it is fantasy or sci, CC2 has tons of symbols and weapons but it also includes all of the bells and whistles such as buildings, trees, mountains, textures and different groupings. These may include city designer and ships for example. If is not enough for you, you can adapt the maps from others at the community portal to your own map.
You can also probably download the demo version of the software since it's always interesting to test it out first hand before investing.
Additional InfoCC2 Blog
Rook Roost Tavern InnSide Notes:
-This game was specifically created to fit into a larger AD&D world called Greyhawk.
-This particular gaming designer's (S. Jensen) style is represented by a mixture of themes from Greyhawk and The Forgotten Realms.
-This example was chosen because it really pushes the envelope on the program's ability.