A collection dedicated to the treatment of disease, held in London's oldest hospital.

This South London cemetery holds the remains of more than 15,000 people.

An incarceration museum on the spot of possibly the oldest prison in England.

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

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

2300-year-old Roman road connecting the empire.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

A haunting collection of the vanished and disappearing natural world.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

France's most famous cemetery, with some of its most curious tombs.

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

Indents in the pavement are all that remain from a grisly death machine in Paris.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The history of the traveling carnival is remembered by this sprawling collection of vintage wagons, games, and rides.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A Museum of Holography frozen in 1974.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

The world's only known button museum.

The subtle science of a master molecular gastronomist.