Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

The oldest volcanology research center in the world.

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

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

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

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A beautifully well-preserved ancient Roman villa.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

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

The bright red cars take travelers through breathtaking Tuscan scenery.

A unique Tuscan hideaway acts as an art mecca as well as a hotel.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

Its interior is adorned with some of the best examples of early Christian mosaics.

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

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

Explore the quarry where the marble was sourced for Michaelangelo's David.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

142 ceramic steps become a mosaic once a year.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

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

A fascinating assortment of cave dwellings, medieval ruins, and sarcophagi are being devoured by the forest.