This enormous sinkhole hides a secret world created from divine wrath.

Though an earthquake destroyed this village in 1980, one former resident still walks its streets every day.

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

This small but lovely sinkhole lake is the last remnant of a great prehistoric water basin.

An abandoned bell tower in the middle of nowhere is the last testimony of a forgotten medieval village.

At an estimated 3,800 years old, this olive tree is one of the oldest on earth.

A small island in Lake Garda that was used as a burial site, pirate hideout, and a monastery.

An abandoned village, frozen in time by the threat of a landslide.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

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

The old church, buried by the 1784 Mount Vesuvius eruption, is a remarkably well-preserved place where people now pray for the souls of the dead.

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

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

These pools have been abandoned for over 20 years.

The now-abandoned Fascist summer colony served a dark purpose during World War II.

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

Hidden in a high mountain cave, this hermitage dates back to the ninth century.

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

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

This former fascist summer camp was abandoned for decades.

A series of caves, tunnels, and wells filled with fascinating figures and symbols.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.