Burg Bruck is located in southern East Tyrol in the urban area of ​​the district capital Lienz. It is built on a hilltop that hugs Lienz's local mountain, Hochstein. The castle was the residence of the Counts of Gorizia from around 1278 to 1500. It has a castle chapel with frescoes by Simon von Taisten. Since 1943 it has served as a museum for the city of Lienz.

Today the castle is a museum of the city of Lienz and houses many pictures by the Lienz painter Albin Egger-Lienz. There are always children's workshops and exhibitions (e.g. the State Exhibition 2000, which included East Tyrol, Brixen, and Trentino ). The area around the castle with the picturesque forest around a small pond near the gate is a popular area for walks and the starting point for many hiking trails. The castle is open from mid-May to the end of October. In 2007 the museum received the Tyrolean Museum Prize.

The approximately 37 meters high keep of the castle can be climbed as part of a museum visit. On the top level of the tower, there is a circumferential viewing gallery, from which there is a very good view of Lienz and the surrounding mountains.