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

Architectureal fantasy quarter of Rome.

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

Inside this building is another country within Rome, a sovereign entity without a physical territory.

The first Russian Orthodox church in the Catholic city of Rome in almost a thousand years.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

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

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

A Nesting Doll of Churches.

A diverse collection of wax, bone, papier-maché and mummified relics.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

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

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

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

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

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

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

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.