From the City Details View, please add the ability to go to that city directly on the map. Perhaps clicking on the large view of the city would take you there.

I sometimes review my cities by stepping through them in the City Details View and discover something of interest like a negative enchantment that needs dispelling. In order to go to that city to take care of it I now have to take note of its name, and go look for it on the map, or select it from the city listing.