Salzburg Fortress is located in Salzburg, Salzburg, Austria. It is a landmark building in Salzburg. It was built on the hills of the old city. It has a long history. It was built in 1077. It was gradually expanded by successive bishops. It is one of the largest medieval castles in Europe. According to the statistics of 2012, more than 996,000 visitors visit the castle every year, which is one of the most popular attractions in Austria. Salzburg Fortress is 250 meters long and 150 meters wide. It also has the reputation of "a fortress that has never been broken". Because it is located on a green hill, it is like a shining white pearl, always shining. The mottled walls outside the fortress have a long history. Inside the fortress, there are solid walls and thick walls. Each part of the fortress is scattered in different places. There are courtyards between the main buildings, and sometimes ancient artillery can be seen. The black muzzle still solemnly monitors the distance, as if the distant war is not over. The Castle regularly has classical chamber concerts, and the performances are some of the more popular classical works. The north and south sides of the castle wall are the best places for photographers to take pictures of the city scenery.