In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

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

Venice's "Island of the Mad."

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

A fake medieval village in the middle of Turin.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

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

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

In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

The enigmatic sculpture hides above an escalator in a Milan metro station.

A brutalist gem towering over the heart of Milan.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

According to local folklore, this Roman sepulcher was once a throne for the Devil.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Ancient ruins hidden underneath a modern luxury hotel.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.