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

The marshy karst plain has reclaimed this beautiful 17th-century church.

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

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

The only Malaysian food truck in Italy slings tangy chicken satay that even Italians love.

The towering Pinocchio stands 63 feet tall in the Italian village his creator frequented as a child.

The world's largest "Christmas tree" is illuminated by hundreds of lights stretching 2,000 feet up the slope of Mount Ingino.

Built to be the ideal penitentiary, this abandoned panopticon saw several revolts and even a prisoners' coup.

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

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

An archaeological treasure trove towers over the valley of Chiavenna.

This 18th-century dissection theater's frescoes display a gorgeous tension between the terrestrial and esoteric.

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

This curious, round temple is the oldest still-standing marble building in Rome.

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

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

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

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

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

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

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

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.