Mülln is an area in the northern part of the Altstadt that is now considered to be part of it and thus of the UNESCO World Cultural Heritage site. The word "Mühle” means "mill” in German and the district′s name refers to them because of the Almkanal and creeks, which provided the energy for flour production. In fact, the oldest sections of the Almkanal can be found here. Mülln itself was probably the first real suburb of Salzburg, as it could be found just outside of the Medieval fortifications. It was mentioned in a document in 709 and the five gates that Mülln once had partly pre-dated the time of the second city fortification campaign of 1480.
Today, there are only approximately 1.000 people who are residents of Mülln, making it the smallest sub-sections of the Altstadt ensemble. This only emphasises the village-feel that you get from the neighbourhood. It is nice for a stroll, but most tourists come for the two main sightseeing attractions: The Müllner Stadtpfarrkirche and the Müllner Bräu, the biggest beer garden of Austria, associated with the brewery in the former Augustinian monastery. Right behind the church of the monastery, you can access the Mönchsberg for some hiking and nice views on the Old Town. Here you will also find the Müllner Schanze, 17th century bastions and gates.
Outlay & Sightseeing Attractions of Mülln
There is one proper mill to be seen, powered by the Almkanal, but somewhat covered up and thus not particularly interesting: Walk down at the Leprosenhaus through the Bärengässchen and you will get there. It belongs to the Barmherzige Schwestern convent, which also has a church from the late 19th century beyond the lane. This neighbourhood is also called "Inneres Mülln” (Inner Mülln) and easy to recognise due to the high density of Medieval and Baroque town houses. They continue to the Müllner Hauptstraße, which would be an exceptionally pretty lane - alas, heavy traffic spoils it quite a bit.
The "Äußeres Mülln” or "Outer Mülln” is characterised by the enormous Landeskrankenhaus Salzburg. In its core, this hospital is a Baroque foundation and comes with a church by Johann Bernhard Fischer von Erlach alongside with two Baroque wings (one for men, once for women). Other sights in the area include the Aiglhof, but the outskirts of the district soon turn into more recently (19th and 20th century) developed residential areas.
Hidden Treasures of Salzburg
German Wikipedia on Mülln
Website of the beer garden Müllner Bräu
City of Salzburg, Official Website