The final resting place of soldiers' loyal canine companions.

Protecting the dead from opportunistic body snatchers.

A book bound in the skin of an infamous criminal, along with countless other specimens.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

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

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The attic of a four-century-old canal house hides a clandestine church.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

Cat art as far as the eye can see.

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

Museum preserving torture methods from the past.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

Contains some of the world's more disturbing wax anatomical models.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Medieval torture techniques with a modern conscience.

The secret medieval communication system will whisk your words above the noise of the crowd.

Remnants of cone-shaped fascist bomb shelters in Milan.

Da Vinci's equestrian statue, 500 years in the making.