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

The ridged layers that make up this river canyon represent Earth's geological history.

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

A maze of underground tunnels beneath one of the most beautiful forts in Serbia.

A Roman monument to their own civil engineering prowess.

The oldest church in Serbia was also the ecclesiastical seat of the region during the Middle Ages.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

Popular river that runs through the remote Serbian municipality of Leskovac.

A misnamed well, with a deep dark past.

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 well preserved medieval fortress in Vojvodina.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

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

The ruins of this medieval castle on a foggy hill tell the story of a once-mighty empire.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

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

A Serbian church lit by chandeliers made of weapons.

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

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

Structure built from the skulls of vanquished foes.

This natural spa is known for its healing properties and vibrant hue.