An eerie, derelict amusement park in Berlin.

An ancient stone fortress considered by many to be the eighth wonder of the world.

Cat art as far as the eye can see.

The final resting place of the man whose name has become synonymous with greatness.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

Week-long block party becomes a competition for the best decorated street.

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

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

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

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

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

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

This 1920s Dutch barge is now a floating bookstore.

A hands-off space for graffiti artists to hone and display their skills.

Rebuilt remains of a temple to Roman god Mithras.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.