Wild Castles (2017)

S1E3 Predjama: Hidden Caves of Slovenia

Predjama Castle is embedded deep within a Slovenian mountain, surrounded by breathtaking natural wonders such as the mysterious Postojna Caves and Lake Cerknica, the continent’s largest intermittent lake. This majestic fortress stands tall while brown bears, aquatic salamanders called olms, and various other species flourish in its imposing presence.