A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

A limestone grotto where daylight filters in from below and turns the water a beautiful turquoise. Also home to a small underwater nativity scene.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

This room of wonder is full of relics, from knights in armor to rare works of art.

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

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

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

A massive marble foot is tucked away in a small alley near the Pantheon.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

A burial vault located under Tiber Island in the middle of the Italian capital.

Roman-era ships unearthed...

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

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

Gods clash with machines in a power plant regenerated as a museum.

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

Rome's ancient Etruscan rival, now a park full of ruins.