This historical marketplace is practically unmissable, as it is located conveniently close to other famous attractions. The weekly market had operated here since the 13th century until it moved to University Square in 1857.
Today, there are still quite a few markets and events happening here. Although a little pricier than other places, you can still buy all the souvenirs that you need here while enjoying a tasty snack from one of the food stalls.
Wikipedia https://zh.wikipedia.org/wiki/老集市广场_(萨尔茨堡)
More information at salzburg.info http://www.salzburg.info/en/sights/squares_streets/alter_markt
Address 6 Brodgasse, Salzburg 5020, Austria
Coordinates 47°47'57.832" N 13°2'42.798" E