An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The Emperor Tiberius' palace of debauchery.

The glowing blue Nymphaeum of Emperor Tiberius.

Ruins of a 10th century church tucked away deep in a botanical garden.

Things seem to roll, flow and run uphill on this short patch of road near Ariccia, Italy.

Climb the dead electric pylons of Messina.

An Italian hillside ghost town.

Southern Italy's spinning top village.

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

A preserved dragon's rib that remembers the legend of the founding of the city of Atessa.

Pompeii's less famous neighbor is still revealing her secrets.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

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

The oldest volcanology research center in the world.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

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

These "anatomical machines" are only one of the many strange items in this Italian crypt.

A sulfuric hellscape in southern Italy.

Virgil's many-mouthed gateway to the underworld.

Cave shrine on Monte Pellegrino.

Thousands of well-dressed mummies below a monastery.

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

A collection of grotesques lines the walls of this Italian villa.

Abandoned village in Sicily built during the agricultural reforms of Mussolini.