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