More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

A masterpiece of modern architecture that caused quite a stir in Paris, recreated in Bologna half a century later.

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

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

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

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.

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

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

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

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

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A forgotten "city of water" underneath the famous Trevi district.

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

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

Breathtaking and huge 430 year old maps of Italy.

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.

These spartan apartments are provided to clergymen visiting Vatican City.

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

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

Millions of numbers carved in glass represent the tattoos forced upon victims.