A war-torn Olympic relic is being overtaken by graffiti and nature.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

The place where World War I began.

Bridge that died in war and was resurected.

Arguably Belgrade's only example of pure Art Deco architecture.

A retro Yugoslav congress, cultural, and business hall built in the 1970s, with an iconic world clock.

This feat of Brutalist architecture is also known as the Three Sisters.

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

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

A museum dedicated to the former country.

A misnamed well, with a deep dark past.

A well preserved medieval fortress in Vojvodina.

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

A pair of connected skyscrapers form this symbolic gateway.

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

According to a local legend, this old castle could only be built after a woman was immured in the walls.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Once a safe haven for locals engaged in blood feuds, this 400-year-old fortified tower is now a museum showing what life was like for those lying in wait within its walls.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

This massive monument was unveiled the day Kosovo declared independence from Serbia.