Main Zones in Dying Light and Dying Light: The Following. They are caracterized by being large exterior areas that have their own maps to display on the inventory menu, unlike sub-zones, that only have a mini-map that can never be seen in its entirety. Sub-zones can be accessed from them, but a sub-zone cannot be accessed from another sub-zone.
There are only four known main zones, with three in the original game, and one in the Following DLC:
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