One part local history, 99 parts gruesome haunted house.

A tongue-in-cheek arcade where the games are based on everyday life.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

This museum is rotten with a century of wax medical deformities.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The largest and most famous wax anatomical collection anywhere in the world.

The oldest operating pharmacy in the world features 800-year-old recipes.

Amsterdam's former hotspot for public executions and dissections.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

The history and future of cannabis.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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

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

Cat art as far as the eye can see.

Museum preserving torture methods from the past.

She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

A wonderfully strange collection of 500+ stuffed frogs doing people things.