In the earlier Part 1 of the "DBA 3.0 Beyond Rebasing" articles I showed off a camp designed in the style of the ancient city of Troy. This was from a set of 3D prints from here. The set contains the camp and two versions of the city. I've just completed one of those two cities and I like it so much I think I may have to do the other one as well.
Of course I don't actually have the minis for the Trojan Wars, but I think this model will do quite well as a generic ancient city.
It's sized correctly for the DBA 3.0 rules, so I'll have to try it out at our next DBA session.