Postojna Cave is the unique location where you can observe the greatest natural gem in the shape of a cavernous formation and also encounter dragon-like creatures. Equally diverse and fascinating as the world on the surface, Postojna Cave features towering peaks, babbling brooks, and spacious underground caverns. It presents a true adventure for explorers and it’s the birthplace of speleobiology. Predjama Castle’s exceptional and distinctive characteristics place it among the top ten most intriguing castles globally. It possesses such a romantic ambiance, that numerous duos select it for their marriage ceremonies. As the world’s largest cavernous castle, recognized in the Guinness World Records, it narrates a vivid tale about periods when comfort had to be sacrificed for security, and the sound of weaponry often overshadowed the melodies of minstrels.