Is Unternberg in Austria on your travel bucket list? This online travel guide is all you need to have before planning your trip. The nearest major city to Unternberg is Klagenfurt. So, ideally any vacation planner would recommend you to visit Klagenfurt for its bountiful attractions like Lake Worthersee, Lindwurmbrunnen And Neuerplatz, City Arkaden on your trip to Unternberg. A vacation to Unternberg can typically be of 1-2 days. Immerse in the spirit of the city and you'll not miss your home.