Places onthenecessity1775 Wants to Go

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A Nesting Doll of Churches.

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

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

A statue representing a lost Roman profession that was vandalized for centuries.

A forgotten "city of water" underneath the famous Trevi district.

This ancient market is often referred to as the oldest shopping mall in the world.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

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

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

Haunting graffiti left by prisoners of the Spanish Inquisition.