PrimeClass Business Lounge — Zagreb Franjo Tudman Airport (ZAG), Croatia
The Primeclass Lounge at Zagreb International Airport is a member of Priority Pass. You can also access the lounge on an international business class ticket with Turkish Airlines, and perhaps others. Since there are only about a dozen gates in the terminal, the lounge is easy to find, located more or less in the center of the international departure lounge after passport control, across from the gates.
Note, however, as I mentioned previously, the lounge is only accessible if you have an international same-day departure. Since domestic flights leave from a separate small terminal on the south end of the building, if you have a long layover for a domestic flight, I recommend that you exit the terminal after immigration and wait outside security until shortly before your flight. There are several restaurants and coffee available there, but once you are inside the domestic terminal, there are only a few chairs and a small snack stand.