For all cities with a population greater than one million, Skopje is closest to Sofia and farthest from Auckland. The closest foreign city is Sofia. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Skopje is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.