Fortresses in Croatia

One of the very few mosques built by the Ottomans still standing in Croatia is now a Catholic church.

Legend has it fairies gathered at the site of this medieval castle.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

Croatia's "hairy stone" fortress is one of the most well preserved Istrian castles.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

Longest fortress system anywhere in Europe.