Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This building features dozens of faces along its facade, although one is a bit chilling.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

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

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

The 10,000 Torii shrine.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

A beautifully eclectic mix of architectural styles.

Amsterdam's former hotspot for public executions and dissections.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Europe's official "zero-level," the equator of elevation.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

The facade of this bank has changed little over the centuries, including its unique welcome sign.

A public urinal so pretty, it was declared a national monument.

Climb inside an iron crystal magnified 165 billion times its normal size.