From lively cafés and hilltop castles to scenic cobblestone streets, Slovenia’s capital city, Ljubljana, has plenty to explore. But if you're craving a bit more adventure, just an hour south you'll ...

Predjama is one of the most extraordinary castles in the world, built in the mouth of a cave complex at the end of a valley in Slovenia. CNN values your feedback 1.

Predjama is one of the most extraordinary castles in the world, built in the mouth of a cave complex at the end of a valley in Slovenia. CNN values your feedback 1.