The remains of the Castle can be visited
Vogelberg Castle (Ruin)

The ruins of Vogelberg Castle, a historic fortress, are perched on a narrow plateau above the road from Waltensburg to Andiast in the Swiss canton of Graubünden. Characteristic are the remains of a rectangular tower, whose construction style suggests a 13th-century origin.
History+
No written records exist regarding the exact origins and history of Vogelberg Castle. Based on its construction, it is assumed that the castle was built in the 13th century. It is speculated that Vogelberg might be the as yet unlocated Stotznstein Castle, as a Jacobus de Stotznstein was mentioned in 1323.
Source: Wikipedia · Licence: CC BY-SA 4.0
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: 46.7817, 9.1003