What is the smallest city in the world?

or:What is the smallest city in the world?or:That depends on how you define \"city\". It used to mean a walled area, but it's not that certain any mo

or:What is the smallest city in the world?

or:That depends on how you define \"city\". It used to mean a walled area, but it's not that certain any more. Would you define it by area, population, economic output, or some other measure?

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