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