This lush, scenic spot was carved by the turquoise waters of the Radovna.

Thousands of medieval skeletons lie just beneath Kranj’s main square.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A miniature train-ride through Slovenia's largest cave system.

During World War II, this rice mill became a Nazi concentration camp.

A giant coin serves as a very unusual yet creative monument commemorating one of the most important people in the history of Trieste.

This Roman monument is surrounded by more recent construction, offering a stark contrast between ancient architecture and the modern urban landscape.

Piran’s oldest square is laden with history and a beautiful 18th-century reservoir.

This delicious Bosnian barbecue restaurant celebrates the diverse cuisine of Slovenia.

A monument to one of Croatia's famous freedom fighters.

A memorial dedicated to the 29,000 Istrian freedom fighters of World War II.

This seven-sided Romanesque chapel is regarded as the oldest building in Rovinj.

A Roman mosaic depicting a classical myth was only rediscovered after bombing during World War II.

A former church turned museum, complete with changing exhibitions.

This underground tunnel system built during World War I offers a fascinating glimpse into Pula's military history.

An excavation site that signified Hercules in Pula, and a glimpse into the city's Roman history.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This military tunnel dates back to World War II and provides visitors with a little wartime adrenaline.

The medieval ferry service has been going strong since the 14th century.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

The interior of this church has been turned into a memorial to locals who died in Croatia's Homeland War.

This pedestrian bridge in Croatia is a sleek, ship-inspired design with a fun net and social spaces.

The local club's soccer field is practically surrounded by UNESCO-protected monuments.