This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Giant topiary dog once played a role in a terrorist bomb plot.

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

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.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A set of seven houses, each built in a style that represents a European country.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The only museum with its curator—and her pets—buried inside.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

A natural wonder in south Denmark.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

A Museum of Psychiatry in a still-operating mental institution.

This ghost town in Belgium will lose its street art when it ceases to exist.

A collection of weird and wonderful art fills a former houseplant nursery.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.