Public works and national defense project meant to carve a canal all the way across the state of Florida.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Water and windows define this defensive Italian well.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

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

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

Machismo turned on its head: the lady's hand goes to the dude with the bigger brain.

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

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

A fake medieval village in the middle of Turin.

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

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

A once-luxurious, now abandoned hotel in the Italian Alps.

This abandoned Brutalist treehouse is a hidden architectural relic.

The location of the last witch trials of Italy, known as "The Salem of Europe."

Secret refuge and museum of the Duke of Florence.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

One of the largest caves in the world open to the public.

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