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