Burg Greifenstein

Burg Greifenstein - Credit: Wikimedia Commons

Greifenstein Castle is a ruined castle in the municipality of Filisur of the Canton of Graubünden in Switzerland. It is included on the register of the Swiss Inventory of Cultural Property of National and Regional Significance. Read more on Wikipedia

type: military installation
date from: 12th century

Source: en.wikipedia.org