The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

The plague quarantine island home to the alleged "Vampire of Venice."

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A Milanese café entirely designed by the American director Wes Anderson.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

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

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

The mark of the Devil's horns on a marble column in Milan.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The oldest stone house in Paris was built by its most famous alchemist.

A church dedicated to the Mexican skeleton saint.

A Turkish ghost town abandoned in a population exchange with Greece.

An abused and forgotten metropolis, abandoned for centuries.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

Extraordinary sculpture garden created by an eccentric English poet.

Kitschy horror displays now fill the house where some very real serial killing took place.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

Twelve natural mummies are displayed in the crypt of this former monastery school.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A restaurant modeled after feudal Japan, where the waitstaff are trained as ninjas.

A taste of the macabre Tokyo's ritzy shopping district.

A Catholicism-themed restaurant where sacrilege is on the menu.