This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

A wunderkammer of mysterious objects and stories.

An eerie, derelict amusement park in Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

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

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

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

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

The 19th-century home of Count and Countess von Hallwyl is now a museum.

When this 18th-century observatory's meridian was moved, it set Sweden's time back by 0.04 seconds.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's deepest subway station is also a stunning ecological wonder.

The library's graceful rotunda is like a bibliophile's temple.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

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

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”