The movie was shot mainly in Slazburg, Austria, ffamous as Mozart's birthplace.
The Salzkammergut lake district - featured in the opening scene of the movie - is one of the most charming regions in Austria: Blue skies, crystal clear warm lakes, mountains shrouded in vibrant green forests and of course the beautiful alpine meadows bejewelled with wildflowers. St. Gilgen, Lake Wolfgangsee, Castle Anif and Fuschl Castle, a hunting palace for the archbishops of Salzburg in the 15th century and is a first-class hotel today, was briefly seen at the beginning of the movie, during the aerial view of Salzburg.
The Untersberg, Salzburg's iconic peak, provides a lovely panorama of the Salzburg basin, the Berchtesgaden region and, on clear days, the lakes of this alpine region, including the Königssee lake in Bavaria.
The Untersberg can be spotted twice in the movie: In the opening scene and in the escape scene, when the family climbs the mountain to leave the country.
The Abbey on the Nonnberg is significant both for the real Trapp story as well as for the movie. Several scenes were filmed here. The opening scene, escape scene, and the scene children came to ask Maria to return to their home...
Leopoldskron Palace was one of the most prominent locations for the film: The lakeside view was used for the Trap Family home.
The Frohnburg Palace's facade, courtyard and front gate were used for the Trapp Villa. The glass gazebo used as setting for various love scenes, like "16 Going on 17" and "Something Good", can be found at Hellbrunn Palace today. In the movie it was located at Leopoldskron Palace.
Mirabell Palace & Gardens In the film, Maria and the children danced around the Fountain singing "Do-Re-Mi".
Mondsee Cathedral was once the heart of an important monastery and was founded in 748 A.D. on the ruins of a Roman settlement. It influenced the culture of the Salzkammergut for more than thousand years. . The wedding scene between Maria and the Baron von Trapp took place here.
A small portion of a picnic scene of the movie was filmed on a hillside of the village of Werfen, a small town 40 km south of Slazburg. The most known attractions are the Eisriesenwelt(the bigest ice-cave in the world) and Burg Hohenwerfen (the medieval castle where the movie Where Eagles Dare was recorded).
The Trapp Family performed its farewell song and Baron von Trapp sang Edelweiss at Felsenreitschule.
Salzburg is only a few miles away from the Austrian-German border and is much too far from either the Swiss or Italian borders for a family to escape by walking. Had the von Trapps hiked over the mountains they would have in all likelihood ended up in Germany near the Kehlsteinhaus, Hitler's mountain retreat in Berchtesgaden.