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Changes
Changing era for Luxury city upgrades
[[Post_Office|'''Post Office''']] on level 3 will give extra bonus if connected to the electrical network.
Also, when you reach [[Ages#EraVEraVI|'''5th 6th Era''']], new city upgrades become available - the [[City Upgrades|'''Luxury Buildings''']]. They require electricity to become active, so remember to bring power lines to each city.
[[Category:Game Content]]
[[Category:Infrastructure]]
