Looking for more options for Latin America, I remembered the fortifications in Habana and the role they played in bringing gold to Spain from all the colonies.
During colonial times, the Spanish built naval fortresses in all main ports across the colonial empire, eg, in
Veracruz (Mexico),
Portobello (Panama),
Cartagena (Colombia),
Lima, and around
Chile, etc. The fortresses worked to protect Spanish gold shipments as a single system. The most interesting part is, and perhaps the one that could be included as a wonder to represent this, is the fortress system in Habana, which includes the
Morro castle as well as a couple other fortifications, that together close up the bay. Once they were all finished (especially the
La Cabaña fortress), there were no more successful attacks on Habana. Ships from Veracruz and Cartagena would gather in Habana, with all the treasure collected throughout the year, and sail together, heavily guarded, to Spain.
It's hard to come up with a name because they're just referred to as "Habana's fortress system", but perhaps the "Morro castle" suffices as it's the original fortress and is a name used also in other cities (eg, Cartagena and Santiago). For effects, I would propose something like extra gold per coastal castle (or star fort?) overseas (ie, continents where your capital is not located). So this would be a Spanish wonder, not so much a Latin American one, but still cool I think. There are other cool colonial-era buildings that could be nice additions to the game, not only in Latin America, but also in Asia (there was a cool train station in Mumbai I proposed some time ago, but can't remember what you chose to do with it). A condition of "can't build on the same continent as the capital" would be good to have for all of them.