Elephants

[Cerbers]

any idea how to build them i have a space free for a new building in a province that has elephants as a resource but cant build the building

[Cerbers]

Also i razed Carthage to the ground cause you know carthage must be destroyed but now i cant build anything its all ruined buildings and i cant dismantle them

[Helliax]

For me, when I razed a city, I needed to first rebuild the main building before I could start to rebuild the "ruins" (ie, the 5? other building slots for that city). And even then, only one of them could be rebuilt per turn.