The world’s largest cave castle, Castillo de Predjama, Slovenia 🇸🇮
Predjama Castle is the world’s largest cave castle, dramatically built into a 123-meter-high cliff in southwestern Slovenia.
The castle was first mentioned in historical records in 1274. It became famous in the 15th century as the home of the knight Erasmus of Lueg (also known as Erazem Predjamski), who rebelled against the Habsburg Empire. During a siege, Erasmus used a secret tunnel system through the cave to secretly bring in food and supplies, allowing him to resist for over a year.
After his death in 1484, the castle was later renovated in Renaissance style and remains one of Slovenia’s most fascinating historical landmarks today.