The remains of the Castle can be visited
Felben Castle

The Felberturm, also known as Felben Castle Ruin, is a castle complex in the Felben district of Mittersill in the Salzburg Pinzgau. This defensive tower is a characteristic example of the smaller castle complexes that once shaped the region, of which only a few remain today.
History+
The Felberturm was probably built in the first half of the 12th century and was the ancestral seat of the Lords of Velben. Heitfoch der Velber is documented between 1147 and 1194 as a free noble vassal of the Counts of Lechsgemünd-Mittersill. Later family members such as Ulrich der Velber (1216-1232) already served as ministeriales of the Archbishops of Salzburg, after they acquired the Upper Pinzgau county in 1228. Part of the property passed to Archbishop Friedrich III. After the death of Dorothea von Waldeck in 1425, an inheritance dispute arose, which Archbishop Pilgrim II. von Puchheim won, seizing the fief. As Mittersill Castle offered a stronger defensive structure, the Felberturm lost its military significance and was subsequently granted as a life annuity to deserving court officials.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Mittersill_Felberkasten_1.png
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 47.2778, 12.4919