The Salzburg region in southwestern Austria was already a rich place in the Middle Ages. Because trade in trade was very developed, it was often invaded by thieves and enemies. Therefore, the locals built countless traffic routes. The fortress is used as a military base, which protects the smooth flow of business roads and also guarantees the safety of the people. Among them, the Salzburg Fortress is the largest and most complete preserved. As early as 1996, it has been included in the World Cultural Heritage together with the old city. The
Salzburg Fortress is also known as the Salzburg Castle. It was built in 1077 and was gradually expanded by successive archbishops. At the same time, the castle is also the residence of the bishops, so the area is very wide and the whole house is monopolized. On the top of the hill, there are courtyards and buildings, such as palaces, churches, concert halls, weapons, prisons, and so on. From the day of construction, the castle of Salzburg has been ruined and has never been broken and occupied for hundreds of years.