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

Gods clash with machines in a power plant regenerated as a museum.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

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

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Water and windows define this defensive Italian well.

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

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

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Walk through a fairytale in Tuscany.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Pilgrimage site for star-crossed lovers.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

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

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.