This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

Art and a pun, all in one.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A surreal museum of extraordinary industrial objects.

An eerie, derelict amusement park in Berlin.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

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

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

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

One of Europe's largest supercomputers is housed inside of a disused chapel.

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

A beautiful but toxic fountain of mercury.

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.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Hamburgers are intensely proud of their tunnel beneath the river.

A perfect replica of the beloved show's first set.

The internet as provided by a James Bond villain.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

Private collection of art inspired by cabinets of curiosity.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

The home of the world's first and last remaining "wooly ant."