To destroy or not to destroy (unique buildings)

[Macilrille]

Ok maybe I am not understanding but are you saying that unique buildings only help the faction that built them? I am playing a Roman campaign right now, conquered about 40 cities around 230BC, and have not destroyed any unique buildings just baracks, local militia and the foreign governments. If they offer no benefit then I might as well destroy them.

Some do, some do not is the short answer. The long one is that to the original owner or anyone of same culture, there is a large bonus, for others there is a smaller one, sometimes none. In my current Sweboz campaign I destroy some, but leave some, Stonehenge still stands for example, while the lakes at Tolosa is drained for all the gold. Rome was dead anyway, so Caepio could not do it ;-)