The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

A fairytale-like medieval church perched atop a rocky cliff on Italy's "Coast of the Gods."

Ancient ruins hidden underneath a modern luxury hotel.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

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

A forgotten "city of water" underneath the famous Trevi district.

Roman-era ships unearthed...

The giant skeleton sculpture is surprisingly well-traveled.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

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

This large, circular tomb is the final resting place of the first emperor of Rome.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

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

Drink wine handed out through a window as part of an age-old tradition.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

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

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

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