If you like to go back in time, visit the oldest viennese coffee house in Salzburg, established already in the year 1703. Locals like to be seen there on a Saturday and Sunday morning. It is funny to see the old structure and furniture and getting served by two people: one that brings you drinks and then another one that brings you cakes, etc.
if you want to go back in time lease go there. Already Mozart used this place and feel like being in another time. Most locals go there, read a newspaper and then enjoy to watch others, or socialize with others. Just enter, find a free place and sit down and you will be served soon.
try the Wiener Melange (similar to Cappuccino).
Mon-Su: 07:30-20:00