predjama castle, slovenia. situated in the middle of a cliff near postojna cave, is the largest cave castle in the world. rooms i

ancient architecture attraction beautiful bridge building castle cave center church city cliff countryside day defend europe facade famous fort fortification fortress franciscan grad grass green historic historical history inside landmark landscape largest legend limestone ljubljanas ljubljanica medieval middle mountain myth nature old postojna predjama predjamski preseren renaissance river rock rooms secret situated slovenia slovenian slovenija square stone stories tale tourism tourist tower travel triple wall world