I'm making the maps for an module a poster on the Steve Jackson Games GURPS forum is making, and I decided to post them here, so I could learn a little from the masters.
Basically, it was made in GIMP via the Dungeon Map Maker script, but I also used the Fractalize path (for the cave). I've made 3 versions, one gridless for Virtual tabletop programs, one with a square grid (1 square=1 yard) and one with an hex grid (1 hex=1 yard). There are 6 more levels though...
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Also, not it needs furniture/doors/porticulises. Does anyone know about a set of map symbols under a license compatible with CC-BY-SA?