A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

A long-buried ancient ruin unearthed right in the middle of the city.

The sunlight passing through the opening of this huge cave system creates a magical effect.

Southern Italy's spinning top village.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

A dead saint, a deadly poison, and a mysterious holy ooze.

Three underground crypts and a pointed arch under the bell tower make this cathedral unique among Romanesque churches.

These artificial caves crafted by ancient Romans were elaborate fish farms for moray eels.

This crescent-shaped beach is said to glow under the light of a full moon.

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

According to the legend, this structure was built in a single night with the help of the devil.

Beautiful views and Roman-style statues on the Italian coast.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

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

Ancient snack bar of the Roman Empire re-opened.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

During World War II, the Shroud of Turin was secreted to this remote southern Italian complex.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

A massive bridge forms part of an aqueduct that was deemed an architectural wonder of its time.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.