Secret refuge and museum of the Duke of Florence.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

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

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Five candy-colored villages on the Italian Riviera.

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

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

The oldest operating pharmacy in the world features 800-year-old recipes.

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

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The middle finger of modernity.

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

Renaissance villa and gardens complete with a tormented colossus.