I don't have much to say on other common buildings: I rarely pay that much attention to the Global era, and earlier buildings seem to be pretty balanced. Still, a couple of remarks:
- Distillery: the Pedia description isn't up to date with the effect (it lists Wheat, Rice, Wine and Sugar, instead of just Potatoes and Sugar). I also think it's a pretty vanilla building that could be made a bit more valuable. +1 flat

or a Merchant slot?
- Hydro Plant: I think it's a bit too good compared to alternative sources of power. Many have noted that there are so many rivers in this mod that it's barely a limitation. I don't really like the idea of a flooding event, but there could be some disadvantage like a penalty to

,

or

. That or require one or several Hill tiles as well.
For national wonders:
- I wonder if the National College isn't available too early, balance-wise: it could be available at Academia while Universities would be available at Education. Maybe the College could even require Universities instead of Libraries?
- The National Theatre is usually an afterthought for me: not having to care about

is nice but if I'm planning to grow a big city I probably want even better national wonders, and by the time the Theatre is unlocked it's not too difficult to get enough happiness.
- Maybe the Red Cross could also have some civilian effect like +1

in all cities.
- National Park: A fun wonder to play with. Anyone else has opinions on which locations are your favorite?