Wild Castles (2017)

S1E1 Heidelberg: Secrets in Stone

Nestled in the heart of the German countryside for over 500 years, Heidelberg Castle was formerly the residence of the nation’s first university and has become integral to the local ecosystem. Visitors can explore the castle's medieval mausoleum, where toads can be seen swimming in the fountains and peregrine falcons make their nests in the bell tower, blending history with the natural world.