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

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

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

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

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

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Walk through a fairytale in Tuscany.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

Renaissance villa and gardens complete with a tormented colossus.

The middle finger of modernity.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

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

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

One of seven Jewish catacombs in Rome and one of only two open to the public.

A modern sliver of architecture in Roma.

Architectureal fantasy quarter of Rome.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.