At this archaeological site, visitors can explore the ruins of the capital of the former Roman province of Moesia.

After this medieval Serbian fresco was hidden for centuries, an image of it became one of the first to be sent into space.

This fresco inside a Serbian cave church has been a source of disagreement.

An idyllic traditional timber village on a picturesque hill was built for a film.

A hidden stream deep in the mountains creates one of the largest tufa waterfalls in Serbia.

These natural stone bridges are the largest on the European continent.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

A misnamed well, with a deep dark past.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

Through the colossal entrance to this cave you'll find limestone tubs and an underground waterfall.

This fresco-covered medieval monastery hangs from the side of a steep cliff.

This mesmerizing medieval monastery-cave complex sits thousands of feet above ground overlooking a valley.

A grand Yugoslav memorial to the group of partisans who fought and died resisting western Serbia’s Nazi occupation.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

A Serbian church lit by chandeliers made of weapons.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Structure built from the skulls of vanquished foes.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.