This monumental fountain has moved around the city multiple times.

Virgil's many-mouthed gateway to the underworld.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

Suffocating dogs was a common spectacle in the fumes of this noxious cave.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.

A tree that defies gravity grows in an ancient ruin.

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

A beautifully well-preserved ancient Roman villa.

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.

A crumbling watchtower and a lighthouse overlooks the site believed to be the Sirens' cliff in the "Odyssey."

Unscathed for almost 2,000 years, the best preserved Roman triumphal arch is in a small southern Italian city.

This Roman amphitheatre was also the location of the first gladiator school.

The underground sanctuary of a mysterious ancient Roman religious cult contains an exquisite traditional fresco.

Nobles would stage mock naval battles on this large lake at the Royal Palace of Caserta.

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

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

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

Geometry and mystery come together in an epic show of octagonal masonry.