The place where World War I began.

Belgrade’s oldest restaurant has a rather unusual name.

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

This striking, historic hotel has major Wes Anderson movie energy.

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

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

A medieval church built up to defend its village.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This is the birthplace of Vlad the Impaler Vlad III Dracul.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

Legendary pedestrian bridge in the centre of Romanian city Sibiu.

Something's watching you.

Romania's triumphal arch looks out over Bucharest.

This once-derelict building is now one of the most beautiful bookstores in the world.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

Historic beer hall in Bucharest with magnificent stained glass and a lively folk band.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Step inside this medieval Orthodox gem and travel back to the 16th century.

This fifth-century church is one of the oldest Christian sites in the Balkans.

A decaying, yet still functioning, work of communist architecture.

An homage to the medieval rulers of Bulgaria.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.