The fountain marks the area where hundreds of accused witches were burned at the stake.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

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

An abandoned swimming pool decays on the outskirts of Berlin.

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

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

One of downtown Berlin's last reminders of its Communist past.

Floating swimming pool within a moored vessel.

Blitzkrieg bop your way through Berlin's Ramones Museum.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

A wunderkammer of mysterious objects and stories.

An eerie, derelict amusement park in Berlin.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

A unique collection of gilded age mechanical pianos.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's only museum devoted to the wonders of fluorescence.

A curious collection dedicated to human and animal anatomy and pathology.

This Tuscan church contains a gallery of over 700 ex-votos depicting near-death experiences.

Meet the oldest inhabitants of this Italian hamlet, a series of oddly preserved mummies.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

Dynamite factory turned museum explores the history of explosives.

There once was a man named Lear / Who found limericks so dear / His final resting space / Is an unusual place / Most people don’t know he’s here.