A 2,000-year-old engineering wonder hides beneath an Italian town.

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

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

This medieval mountain town is also known as the "Village of Streams."

For decades, vendors have sold clothes once worn by American soldiers who stormed Italy in the 1940s.

The Bourbon royal family had this unique octagonal hunting "cottage" built on a tiny islet in Lake Fusaro.

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

Known as the Royal Palace of the Euganean Hills, this often overlooked castle has been home for multiple noble families over the centuries.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

A medieval Italian village is fighting depopulation with this vibrant annual street art festival.

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

A medieval stronghold rising over the ruins of ancient Roman villas along Rome's southern coast.

A cherry tree growing atop a mulberry tree.

Just saying the name of this town out loud is said to bring bad luck.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

Leveled by an earthquake, this Italian village is now preserved as a massive concrete art project.

Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

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.

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

Take a giant yellow bird cage to the top of Elba's highest mountain.

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

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

A beautiful discovery site of prehistoric burials.