This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

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

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

Island wonderland for communist autocrats.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Art and a pun, all in one.

An impressive monument to Poland's independence.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

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

A pair of connected skyscrapers form this symbolic gateway.

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

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

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

Structure built from the skulls of vanquished foes.

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