The world's largest collection of witchcraft regalia.

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

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

The final resting place of the poets Shelley and Keats.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Venice's "Island of the Mad."

Architectureal fantasy quarter of Rome.

Thousands of well-dressed mummies below a monastery.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

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

Where Mary Shelley’s "Frankenstein" and John William Polidori's "The Vampyre" were born.

These magnificent 240-year-old machines are considered distant ancestors of the computer.

One of the world's largest collections of pharmaceutical artifacts.

An 11th-century fortress home to one of the most influential royal houses in medieval Europe.

Abbey built on the ruins of Roman catacombs.

Extensive private collection of authentic Medieval devices used for human torture and execution.

Museum dedicated to wax representations of disfiguring diseases.

This simple apartment may have inspired some of the most important theories in the history of science.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Caves famous for the dragon-slaying saint who lived there.