Sights · Our pick
Predjama Castle
Built into a cliff
A castle set into the mouth of a cave halfway up a sheer cliff, about 10 km from Postojna.

Photo Credit
Image courtesy of © Jakub Hałun · CC BY 4.0 via Wikimedia Commons
Photo Credit
Image courtesy of © Shadowgate from Novara, ITALY · CC BY 2.0 via Wikimedia Commons
Photo Credit
Image courtesy of © Tiia Monto · CC BY-SA 3.0 via Wikimedia Commons1 / 3
About Predjama Castle
Set in the mouth of a cave halfway up a sheer rock face, a few kilometres from Postojna Cave, Predjama is a medieval marvel listed in Guinness World Records. Its most famous lord, the knight Erazem of Predjama, held out against an imperial siege for over a year, slipping in and out through secret tunnels, until a servant’s betrayal ended it all at a most undignified moment. Explore the armoury, chapel, kitchen and torture chamber, then climb to the attic for the valley view. The cave beneath can be toured too, and combined tickets with Postojna Cave are sold.
Our take
- Cave-mouth castle
- Legend of Erazem
- Joint Postojna tickets
- Address
- Predjama, the Balkans
- Website
- postojnska-jama.eu
- Our city guide
- On our Ljubljana guide
- Price guide
- €€ (sights price guide)
Opening hours, prices and seasonal openings change, so please check with Predjama Castle before you go.
Last checked: October 2026 How we choose
Location
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