About the location (from Wiki):
Residenzplatz is a large, stately square in the heart of the historic center of Salzburg, Salzburgerland in Austria. It is one of the most popular places to visit in Salzburg. The Residenzplatz is located in the historic center (‘Altstadt’) of Salzburg, close to the Salzburg Cathedral (Dom), the ‘Mozartplatz’, and the Hohensalzburg Castle. The square is bordered by the ‘Alte Residenz’ to the west, the ‘Neue Residenz’ to the east, the Salzburg Cathedral (Dom) to the south and historic private houses (‘Bürgerhäuser’) to the north. The Residenzplatz was built by the Archbishop of Salzburg Wolf Dietrich Raitenau in 1587, who also ordered the construction of the monastery of the Salzburg Cathedral (Dom). As a result, a number of private hoses were demolished. A cemetery last used in the late 16th century was recently discovered underneath the Residenzplatz.

Movies shot at this location:
Kyaa Dil Ne Kahaa song from Kyaa Dil Ne Kahaa
Meri Neend Janay Lagi Hai song from Chal Mere Bhai