St. Francesca Romana, patron saint of drivers, resides in the church she founded.

One of seven Jewish catacombs in Rome and one of only two open to the public.

Jesus' footprints and the first catacombs in the world.

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

Architectural monsters are devouring this palace's every door and window.

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

Largest necropolis in the Mediterranean.

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

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

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

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

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Abandoned railway line circling the city of Paris.