How to build a bank in Civilization 7
Briefly

In Civilization 7, establishing a bank is a strategic move for enhancing gold income in cities, particularly beneficial for players following the Economic Legacy Path. To unlock banks, players must research Urban Planning in the Exploration Age, which necessitates prior completion of numerous technologies like Astronomy and Architecture. Banks demand substantial production resources for construction, ranging from 250 to 260 production points, and they can only be constructed in cities, not towns. Once operational, banks provide a base gold income of +5 per turn, with maintenance costs impacting city happiness.
Banks are a crucial building in Civilization 7, enhancing your city's economy by providing additional gold, but they require extensive research and city production to build.
To unlock banks, players need to research Urban Planning, which is located towards the end of the Exploration Age technology tree, necessitating earlier research of several techs.
The bank, once built, generates a minimum of +5 gold per turn but requires a significant investment in production and incurs ongoing happiness costs.
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