Salzburg is the fourth-largest city in Austria and the capital of the federal state of Salzburg. Salzburg's "Old Town" with its world famous baroque architecture is one of the best-preserved city centers in the German-speaking world and listed as a UNESCO World Heritage Site in 1997. The city is noted for its Alpinesetting. It is the birthplace of Mozart and the setting for parts of the musical and film The Sound of Music. Salzburg is also a student city, with three universities.
Though it is actually above Upper Austria, Lower Austria is called that because it sits lower on the Danube River, which flows through it from west to east. The state borders on Slovakia, Czech Republic, and on the other Austrian states of Upper Austria, Styria and Burgenland. The state surrounds Vienna.