National Wonders
Dike: This wonder really doesn't seem to give much besides being culturally unique to the Dutch and a couple of

points. I think that making it into a regular building, perhaps with the

points stripped ought, would be a good notion.
Most dikes I know of are defensive ditches between nations.

I would replace this one with the great wonder
Zulderzee a modern era wonder that turns one coastal plot into good farmland. I think one already exists that we can modify for C2C's different sea terrains (Platyping perhaps).
District Courthouse: Has anyone made any inquiries into whether the sort of 1-per-3-courthouses tag could be created for this building?
The only problem with the 1-per-3 option is that you don't get a new one at 1, 5, 8 but at 3, 6, 9 which disadvantages small nations
and the One City Challenge option. Although I suspect than there are a number of problems in C2C with that option because we don't allow some buildings to be built in the same place as others. The tags that do that should remain but they should be ignored for On City Challenge games - ie its a dll problem
Medical Clinic: Hospital as a requirement would make this a good upgrade-building IMHO.
I would have thought it would be an upgrade to the Doctor Office myself.
Modern Art Theatre: Theatre AND Opera House seems like quite a hefty requirement. Could thse be made into an OR requirement instead?
Disagree, I like it needing both and I think it makes sense. this way.
National Mint: In light of the new currency civics, Metals OR Coinage OR Gold Standard would seem a better fit, though given the US (a Credit-based nation if there ever was one) has a modern mint of it's own, one might question the need for civic requirements in the first place.
I agree, it should not require a civic but the currency tech plus the "Town Council" or higher administration building.
National Park: This is a very powerful wonder, even for it's time; completely stripping out the

from population can lead to a veritable Green Baby Boom. Thus, to counterbalance, could access to other polluting resources be removed, such as Oil and Uranium?
Disagree, others have stated the reasons.
Police Academy: These sorts of specialized institutions tend to be seperate from the academic mainstream, but for the sake of simplicity would Police Station AND University work?
Propaganda Net: Trading Post OR Modern Offices seems in order here.
Research Hospital: Hospital AND Laboratory, just like the CDC.
Agree
Scotland Yard: Just like Oxford University, this seems better suited for WW status. Perhaps it could function as a combo of 221B Baker Street and Police Academy's bonuses?
Mostly because it is the Great Spy building
and"named" and so confused. Yes Scotland Yard (or equavlent) should exist
but it should not be the Great Spy building. The GS should have its own building similar in game affect to the other G People's buildings but espionage related. It should not be a wonder of any kind.
Treasury: Is it possible that this could require Palace OR one of the other buildings that reduces maintenance in nearby cities, such as the Forbidden Palace or Versailles Palace?
there is a "requires government centre" tag in the XML that does just this.
Those not mentioned here I have commented on elsewhere or just agree with Great Wonders to come.
