Burg Losenstein - Credit: Wikimedia Commons
The Castle of Losenstein is a castle ruin in Upper Austria. It rises above the village of Losenstein on a rock (Castle Rock), composed of dolomite. It is one of the largest and oldest ruins of Upper Austria. Built in the 12th century by the Styrian Ottokars, the Castle of Losenstein consists of the main building and one major ancillary tower. Beginning in 1252 the Lords of Losenstein (Losenstein) owned the castle. Read more on Wikipedia
Source: en.wikipedia.org