The list is in your Steam\SteamApps\common\sid meier's civilization v\assets\Gameplay\XML\Civilizations\CIV5Civilizations.xml file
for c in GameInfo.Civilizations("Playable = 1") do
print(string.format("\n[b]%s[/b]",Locale.ConvertTextKey(c.Description)))
for n in GameInfo.Civilization_CityNames("CivilizationType = '" .. c.Type .. "'") do
print(Locale.ConvertTextKey(n.CityName))
end
end
Greek Empire
[...]
Apolyton
"CFC's rival site" Apolyton is a Greek city in PTW (maybe also in Vanilla civ3, but I'm not sure)...
Which cities haven't you heard of? Ignore Hunt Valley, since it's where Firaxis is located (so it's an inside joke, like Apolyton and Thunderfall). Palo Alto is Silicon Valley, more or less.
The only one I'm not sure about is Le Bam, which I can't find. Might be another inside joke.
BTW, at some point I might make a corrected Rome list. There's definitely some major cities ignored in favor of minor ones. Also, there are some typos on the list (I'm pretty sure Arpinium is supposed to be Arriminium, which is modern day Rimini).
Centralia is the cool city that's fire underneath. Not a major city, but an interesting historical thing. Still have no clue about Le Bam.