Linz was founded by the Romans, who called it "Lentia", but there was already a Celtic settlement called "Lentos"; probably their word for the winding of a river. It was a provincial and local government city of the Holy Roman Empire, and an important trading point connecting several routes. Being the city where the Habsburg Emperor Friedrich III spent his last years, it was, for a short period of time, the most important city in the empire. It lost its status to Vienna and Prague after the death of the Emperor in 1493.
There are many things to see in Linz. Take a stroll down the main street which leads to the main square. In addition to the medieval town square in the historic old town and the Mozarthaus see the Renaissance villas, as well as the old cathedral, with the Bruckner organ or the new cathedral. If time allows, you can taste a piece of the famous Linzer Torte (Linzer Cake) in one of the local bakeries.
Price: $24 per person.
Note that this tour overlaps with the optional tour to Salzburg and therefore have a choice of going to Salzburg or taking this tour.