2300-year-old Roman road connecting the empire.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

This curious, round temple is the oldest still-standing marble building in Rome.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

A 15th-century monumental Latin inscription on this house celebrates Lorenzo Manilio's love for Rome.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Chicago’s incendiary role in the labor movement.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Home to a protest movement, a bombing, and a dramatic change in labor history.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

How did a 2,000-year-old Roman column find its way to a Chicago park?

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.