Salzburg's "Old Town" (Altstadt) has internationally renowned baroque architecture and one of the best-preserved city centres north of the Alps. It was listed as a UNESCO World Heritage Site in 1997. Host to three universities and a large population of students, Salzburg is noted for its attractive setting and scenic Alpine backdrop.
Salzburg was the birthplace of 18th-century composer Wolfgang Amadeus Mozart. In the mid‑20th century, the city was the setting for parts of the musical and film The Sound of Music.
Traces of human settlements have been found in the area dating to the Neolithic Age. The first settlements at Salzburg were apparently begun by the Celts around the 5th century BC.
Around 15 BC the separate settlements were merged into one city by the Roman Empire. At this time the city was called Juvavum and was awarded the status of a Roman municipium in 45 AD. Juvavum developed into an important town of the Roman province of Noricum. After the collapse of the Norican frontier, Juvavum declined so sharply that by the late 7th century it had become a "near ruin".