The ruins of a military-industrial complex now host concerts and more.

Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

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

This beautiful medieval Serbian monastery is home to frescoes, peculiar sculptures, and historical curiosities.

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

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

This former monastery is still a revered religious site.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

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

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

Structure built from the skulls of vanquished foes.

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

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

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

This outcropping was once home to a medieval monastery destroyed during the Ottoman conquest.

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

A museum dedicated to the former country.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

The unusual sculptures are believed to be powerful political symbols.

One of Belgrade's most beloved animals.

A Serbian church lit by chandeliers made of weapons.

A misnamed well, with a deep dark past.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.