One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

An amazing collection of wax anatomical models and terratological models.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.

This building features dozens of faces along its facade, although one is a bit chilling.

Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A beloved local artist has been honored with this statue of a man emerging from a toilet.

Da Vinci's equestrian statue, 500 years in the making.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The secret medieval communication system will whisk your words above the noise of the crowd.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

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 medieval, mosaic-lined baptistry built by a heretical Christian sect.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

Where members of the Crossbow Corps of San Marino demonstrate their skills.