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

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

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

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 vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

This house's itty bitty size means no humans allowed.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

Cold war icon and onetime "hole" in the iron curtain.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

This artistic fountain display pays homage to this area's theatrical history.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

Today this former Nazi concentration camp stands as a poignant memorial to the victims of fascism, and a warning from history.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

A 17th-century church is nestled within the walls of a 15th-century ruin.

Forlorn amidst a thicket mere feet from a cliff's edge stands a solitary headstone that appears completely out of place, a haunting symbol of a once-thriving town now lost to the relentless forces of nature.

This meticulously reconstructed early medieval settlement offers an immersive experience of daily life in an Anglo-Saxon community.

Banksy's image of a naked man dangling from the window of a sex health clinic.

Fascinating town where normal life interfaces with the occult.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.