A pair of connected skyscrapers form this symbolic gateway.

The now-overgrown beach resort was once frequented by Yugoslav military elite.

Longest fortress system anywhere in Europe.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

The temple that withstood the Nazis.

An homage to the medieval rulers of Bulgaria.

Sofia's legislative center is continuously reinventing itself.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

A mountain pass in Bulgaria's Balkan Mountains was the site of four historic battles.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

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

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

This historical village takes you back to the 19th century.

A museum dedicated to the former country.

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

This building has survived for more than a century and remains virtually untouched.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

The former headquarters of history's oldest megacorporation.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.