People have been talking about fantasy books in
an offtopic thread and while I knew none of the sagas or authors mentioned in there, I had a look around. I've found an encyclopedia called "The Tower of the Hand" which has a nice
Google Maps interface to the map of Westeros which is the world where George RR Martin's "Song of Ice and Fire" saga takes place, which might make a nice Dominions 3 map.
I have stitched together the images for the different zoom levels and made versions with and without the labels. But since I don't really know the series and fear that rabid fans will kill me if I make some small factual error, I'll rather place them here and hope that somebody might pick those up to create a map. Attached is a zip file of all the stitched images, with and without labels, in PNG format, and some other reference images which can be used to split the map into provinces and name them. Maybe somebody even owns the "A Game of Thrones" board game, because some of the province names used there are buried in my image.