Hi!
I've mostly played Empire. I tend to like the bad guys... but anyway! I have seen two buildings and no resources that grant prestige. The buildings were monument (+1) and Temple of Someone (+50%).
This seemed fairly okay, even though that is rather few ways to increase prestige.
For kingdom cities I've seen inn (+1), tavern (+2), Town hall (+2? Or 4?) Palace (+7), Great Bazaar (+100%). This seems extremely one-sided, and prestige is a rather important value. Not as important as some (Guildar is pretty important as well, the palace gives +7 of those too..).
... and I'm wondering, am I missing something here? My first thought is, it seems imbalanced, but I do know Empires appear to get VERY strong monster allies, so I'm not discounting that it's a balancing act, but I'd like some thoughts on it.