Salzburg's story differs from most other Austrian cities — for centuries it was not part of the Habsburg Empire at all, but an independent "prince-archbishopric" (Fürsterzbistum) ruled by Catholic prince-archbishops who held full religious and political authority simultaneously. This independence lasted from the Middle Ages until 1803, when the principality was secularized and later absorbed into Austria following the political upheavals of the Napoleonic Wars.

The city's very name, Salzburg, literally means "Salt Castle" — salt mined from nearby deposits was the core source of wealth that allowed the prince-archbishops to build their grand Baroque palaces and churches, explaining the unified architectural style that defines the Old Town today. The 17th century in particular, under Prince-Archbishop Markus Sittikus and his successor Paris Lodron, saw the greatest wave of architectural renewal, transforming the city into what's often called "the Rome of the North" thanks to Italian architects specifically brought in to design the cathedral and palaces.

Thanks to this cohesive and exceptionally well-preserved architectural heritage, the "Historic Centre of the City of Salzburg" was inscribed as a UNESCO World Heritage Site in 1996, recognized as a unique example of a fully integrated Baroque European city set within an older medieval framework.

No account of Salzburg's cultural history is complete without its music: Wolfgang Amadeus Mozart was born here in 1756, and the city later became a global center for classical music, crowned by the founding of the Salzburg Festival in 1920. Culturally, traditional Austrian dress such as the Dirndl for women and leather Lederhosen for men still appears at festivals and folk celebrations, especially during the winter Christmas markets that transform the city's squares into a magical scene of lights, handicrafts, and warm drinks every year between late November and late December.

The local cuisine also reflects this blend of German-Bavarian character with distinctly Austrian influences, from the famous Wiener Schnitzel to Salzburger Nockerl — a soufflé-like dessert said to have been invented in the city itself and proudly bearing its name.