A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

A musical instrument played by the sea.

Of course Salvador Dalí lived in a castle...

Village situated on a narrow volcanic escarpment.

This castle-fortress is a living example of the transition from medieval defenses to modern fortifications.

Kissing the ass of this stone lioness has become a rite of passage in the city of Girona.

These fly sculptures are scattered around the city and represent the patron saint of Girona.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

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

Haunting monument to the German Jewish philosopher who died while fleeing fascism.

A science fiction-inspired apartment building designed by a famous Spanish architect.

An architect transformed this abandoned cement factory into his castle-like workshop.

Designed by Gustave Eiffel before his famed tower.

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.

These spindly, stone-capped formations are the product of glacial deposits and thousands of years of erosion.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

The only tower of an aerial tramway standing over a ski-lift.

A massive observation tower that features gorgeous views and unique architecture.

Featuring the last fully walkable parapet walkway in Europe.

These elaborate gothic monuments honor Verona's medieval lords.

Pilgrimage site for star-crossed lovers.

The oldest botanical garden in the world that technically isn't the oldest.

One of the largest squares in Europe contains an entire artificial island.