Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

This series of Scottish caves has no clear purpose other than baffling historians.

A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

This 15th century pharmacy displays a beautiful collection of ancient medicine jars.

A giant Troll lurks under one of Seattle's oldest bridges.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Amsterdam's Red Light District leaves little to the imagination.

A preserved college lock-up that recalls a clubhouse approach to discipline.

Meet the world's longest tapeworm in a collection that really gets under your skin.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Anatomical cabinet holds unexpected treasures.

Hungarian mummies in beautiful painted coffins.

Perhaps the most beautiful of preserved saints, with a little help from Paris.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Weird wax anatomical models reside here, as do other anatomical specimens.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

An encyclopedic collection of mammal penises.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.