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Wild Castles
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.
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Season 1 Episode Guide See All
Episode 1
Heidelberg: Secrets in Stone
48 mins
Standing deep in the German countryside for over 500 years, Heidelberg Castle was once home to the country's first university and is now part of the surrounding ecosystem.
