Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

A once-secret library of Freemason history in Catalonia.

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

One of downtown Berlin's last reminders of its Communist past.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Tiny memorials honor individual victims of the Holocaust.

The cutest way to stay safe in traffic.

Lumps of significant stone from around the world surround a flaming monument for peace.

When you're a great Russian Tsar, even your vomit gets a statue.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

These steps offer a breathtaking view of one of Europe's most besieged fortresses.