Castle ruin Grottenstein
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The castle Grottenstein is the ruin of a cave castle at the foot of a rock face of the Calanda.
Grottenstein is a cave castle of undetermined age at the foot of a rockface on Calanda mountain. A 20-metre-long section of wall remains to this day of the castle built under a rocky bluff.
Responsible for this content Chur - Die Alpenstadt.
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