The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The smallest post office in the United States is no bigger than a broom closet.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

While most books are made of wood, these wooden books are truly made of, and all about wood.

The mystic whose incorrupt corpse still attracts the faithful.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

The mark of the Devil's horns on a marble column in Milan.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

A gorgeous medieval library where the books are kept in chains.

Europe’s oldest natural human mummy.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

David Sedaris called it "The greatest shop in the world."

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Ruins of a 10th century church tucked away deep in a botanical garden.

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.