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

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

Knights Templar are visible inside this stunning Cistercian abbey.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Its interior is adorned with some of the best examples of early Christian mosaics.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This former papal residence was the site of an infamous incident known as the “slap of Anagni.”

A medieval house with mysterious alchemical inscriptions on its facade

This statue has a painful history, but activists have since recontextualized it as a way to educate visitors about the dangers posed by fascist regimes.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

Time stands still at this serene burial ground in the center of Budapest.

Once the home of a hermetic monk, this cave now houses a small church.

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.