The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

France's most famous cemetery, with some of its most curious tombs.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

A collection of full-size movie monsters opened to the public.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

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

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

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

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

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

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.