Predjama Castle by @galanova_ma is a striking Renaissance fortress dramatically built into the mouth of a cave in southwestern Slovenia. Nestled in a 123-meter-high cliff, it’s the largest cave castle in the world and a true marvel of medieval engineering. Originally constructed in the 13th century, the castle became legendary through the tale of Erazem Lueger, a rebellious knight who used a secret tunnel to withstand a year-long siege. The castle’s blend of natural rock and man-made structure c

The famous castle known as the 'White Heron', is the largest surviving example of a traditional Japanese castle. | Inspiring Vacations