Tiny memorials honor individual victims of the Holocaust.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

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

A collection of abandoned typographic signs from Berlin and beyond.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Started as a kitchen garden, now the second largest botanical garden in the world.

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

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

Three rooms of bones, curios, and one artist's collection of natural artifacts create this intriguing museum.

Australian museum dedicated to human health and lack thereof.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

A wunderkammer of mysterious objects and stories.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

The "Rocky Horror Picture Show" character has a hidden camera that broadcasts people doing the "Time Warp."

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The Liverpool street made famous by the Beatles is real.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

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

A gigantic sculpture garden is packed with innovative oddities.

Known for the tunnel that leads visitors to the water.

One of the world's largest Tesla coils.

Tubing through a cave lit with glowworms is a magical underground experience.