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