These are some of my older ones. The Eastern Front one, was really just a Talonsoft to PG conversion. The Gela, Sicily one actually is historical and I pulled it out some reading material a few years back.
Shad has a good idea though, a bibliography and discussion of map layout and victory condition reasoning would make this topic more of a discussion area. Of course that feeds into my asking Shad for a historical support folder for PG. I imagine that will come when there is material to put INTO such a folder.