The second-highest village in Lazio has attracted artists for 400 years and is now a spectacular open-air art gallery.

The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

Was this cave created by Hercules's wrath, the devil, or volcanic activity?

A small Byzantine church lost in the middle of the mountains of southern Italy.

A long-buried ancient ruin unearthed right in the middle of the city.

A lonesome Moai stands in a small Italian town some 9,000 miles away from its Easter Island brethren.

Legend said this huge, gnarled tree sheltered the saint during a storm.

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

This is the oldest Roman-made bridge in the city still existing in its original state.

An archaeological treasure trove towers over the valley of Chiavenna.

Featuring the last fully walkable parapet walkway in Europe.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

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

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

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

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

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

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

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

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

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

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

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

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.