This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

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

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

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Vibrant street art created with mixed media.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The celebrated eyesore created by starry-eyed sweethearts.