26. Incheon Advanced Quarantine City.
Incheon is just one of the numerous cities within the vast nation of South Korea, but it differs significantly from a typical city in a few key aspects:
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It's the only city on the Korean Peninsula where mainland Chinese residents can participate in local elections.
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It possesses its own administrative, legislative, and judicial powers, and even has an army, essentially functioning as a city-state.
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The city’s population is excessively large for a city, with an official count of 30 million.
