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

Massive galleon from a box-office bomb docked in Genoa.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

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

A sculpture serving as an homage to Pope John Paul II.

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

This clifftop arch is a natural stunner.

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

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

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

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

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The walls and streets of the ancient city are peppered with penises.

This precariously perched fortress was once ruled by a crow-worshipping baron.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

Southern Italy's spinning top village.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Romans built the world's tallest artificial waterfall in 271 BC.

Go inside to really appreciate this 500-year-old technological masterpiece.

An Italian hillside ghost town.