Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

This former military airfield's claim to fame came from a lucky accident during the Second World War.

In 1943 the British military took control of this village, telling residents they had to leave temporarily. The villagers were never allowed to return.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.

Fascinating town where normal life interfaces with the occult.

An abandoned Ecuadorian prison that once held ex-presidents and notorious con artists is now a carceral museum.

The eternal resting place of the last highwayman hanged in England.

The mass grave of the 27 victims of the "Vampire of Hanover."

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

Suffocating dogs was a common spectacle in the fumes of this noxious cave.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

An eerie, little-known Neapolitan museum filled with preserved human remains.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

An Irish cemetery filled with victims of political strife and violent conflict, including the grave of Bobby Sands.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

One of the most important yet well-hidden museums dedicated to the history of medicine.