Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This snug medieval lane is one of the narrowest streets in the world.

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

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

An early 20th-century bullring converted into a modern shopping center.

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

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Mountain where Jesus was first tempted by the Devil.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This cemetery features modernist statues as strange as its name.

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

This semi-secret storybook hedge maze is also the oldest garden in the city.

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

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

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

The modern birthplace of Irish freedom.