You guys made a beautiful game, and people want to take good screenshots of their cities/civilizations. So let us rotate the camera properly and throw in a couple of photo filters (e.g. one could make it look like a Renaissance painting, another like a 19th-century photo, etc, unlocking with each era).

The other massive bonus of 360° camera rotation would be that we could finally see hills facing downhill away from the default camera. Hills are really important in combat and we can't always see them.

"But people will get confused because there's no minimap to be able to see where things are" = add a hotkey to reset camera rotation to the default angle. Problem solved.