Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

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

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

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

The mark of the Devil's horns on a marble column in Milan.

The Emperor Tiberius' palace of debauchery.

Fortified medieval tower house with lovely roof garden.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

Water and windows define this defensive Italian well.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A lover's walk between hilltop towns, decorated with graffiti love notes.

The bomb-ravaged remains of of a colossal Neptune.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

100 year tradition of fist fights, marked by marble footsteps.

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

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.