The location of the last witch trials of Italy, known as "The Salem of Europe."

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

A collection of objects supposedly singed by the hands of souls in purgatory.

This 16th-century monastery has been turned into a surrealist architecture compound.

A fairy tale castle in modern Rome.

The final resting place of the poets Shelley and Keats.

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

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

The underground sanctuary of a mysterious ancient cult.

Architectureal fantasy quarter of Rome.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A 16th-century horror show built in a lovely Italian garden.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An image of the legendary saint stands in the shadow of a cathedral she liberated.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A snapshot of the city's fascinating voodoo culture.

An eerie, derelict amusement park in Berlin.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

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

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.