I do not mean tech-wise. I mean before you can BUILD the thing in a city. So far I know:
Hoover Dam - city on a river
Colossus- City on a coast
JS Bach - Cathedral in city (it took me a few minutes today to realize this,,
)
What other wonders require specific conditions?
Hoover Dam - city on a river
Colossus- City on a coast
JS Bach - Cathedral in city (it took me a few minutes today to realize this,,

What other wonders require specific conditions?
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