Wild Castles Series 1 3of5 Predjama Hidden Caves of Slovenia

The abandoned castles of Europe are magnificent markers of the continent’s tempestuous history. But where they once hosted royalty, these empty, hulking structures are now overtaken by the wildlife and rich natural environments flourishing around them. From peregrine falcons ruling the bell towers of Germany’s Heidelberg Castle, to exotic amphibians thriving in the spring-fed fountains of Spain’s iconic Alhambra, explore the curious history of these imposing European structures and the creatures that call them home.

Part 3: Predjama: Hidden Caves of Slovenia
Predjama Castle is carved into the heart of a Slovenian mountain and nestled among stunning natural attractions, including the eerie Postojna Caves and Lake Cerknica–Europe’s largest intermittent lake. Brown bears, aquatic salamanders known as olms, and more thrive in the shadow of this imposing fortress.