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

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.

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

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 but very fascinating fountain in the center of Rome with four books and a deer carved.

A massive marble foot is tucked away in a small alley near the Pantheon.

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Harlequin costumes, signed scripts, and armor-wearing puppets.

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

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

This hidden alley near the location of Rome's first theater was the site of a curious miracle.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This unassuming bridge is most likely one of Michelangelo's unfinished masterworks.

Ever hear of the Milazzo Cage?

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

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

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

A mysterious castle "in the clouds" has had many lives including a radar bunker, dog hotel, and conference center.

Quotes and poems etched on stone plaques are hidden along this waterfront walkway.

A winding staircase that appears to lead to nowhere is actually a diving platform into the Wellington Harbour.