This page lists a total of 30 maps made for Civilization II. Most of them are maps I have made, but there's also a selection of excellent maps made by others. The majority of the maps available on my website, however, are part of my map database, containing 240 real-world maps:
Note that the maps on this page are not part of the map database.
I have hundreds more Civilization II maps on my computer which I intend to make available online as well. But due to the sheer number of maps and my ambitious plans for a fancy, pretty, easily navigable and searchable map database, I don't know when I'll ever get around to that.