Where was Old Shatterhand filmed?

1964 film by Hugo Fregonese

Old Shatterhand (1964) was filmed in Berlin, Dubrovnik, Plitvice Lakes National Park and Trebišnjica, 4 places named in its Wikipedia article, in Croatia, Germany, Bosnia and Herzegovina. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data