Yes. Aqueducts are both more expensive than granaries (given by the Pyramids) and more vital. A city without a granary will grow eventually, but a city without an aqueduct (or fresh water) can't grow past size six at all. Also note that building (or rushing) aqueducts in coastal cities with very few useful land tiles (e.g. all tundra) can be quite painful, but a wonder that gives free aqueducts in all cities would completely bypass that problem.Originally posted by FrustratedPoet
The cost could easily be increased, but do you think that even if we made it the most costly Ancient Age wonder it would still be over-powered?