This observatory high on a hilltop in the center of Santiago got its start in 1852.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

An Italian vineyard invites religious pilgrims to stop by 24/7 to get their drink on, for free.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A young Italian couple has been locked in an embrace for over 6,000 years.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

One of the largest caves in the world open to the public.

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

Virgil's many-mouthed gateway to the underworld.

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

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

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

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

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

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

The final resting place of the poets Shelley and Keats.

An Italian hillside ghost town.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The middle finger of modernity.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

An alchemist's "magic door" stands in the middle of a Roman park.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A submerged archeological park still holds the wonders of a Roman Sodom.

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