This medieval castle was home to a known tyrant and features several hidden passages.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

Massive galleon from a box-office bomb docked in Genoa.

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

This medieval city gate is now a blend of the past and the modern world.

Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

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

The remains of this 2nd-century Roman temple are incorporated into a modern building.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

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

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

Fortified medieval tower house with lovely roof garden.

Every inch of this chapel is covered in craftsmanship from across the world.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Two stone columns flank the grand Venice square, but there were supposed to be three.