A pair of stones embedded in an Edinburgh street memorialize one of the city's last public hangings.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A speakeasy takes on Chicago's drinking culture.

This former office building has been transformed into an immersive music venue and art space.

One man's vision and a labor of love of many.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Symbolic attempt to overcome the issues of life.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

The first free library in Georgia features an original Tiffany stained glass window of Mary Willis.

A statue honoring 44 continuous years of greeting passing ships.

This hidden stone has absorbed decades of human anxiety.

Coca Cola may be "the real thing" but its inventor, buried at this Georgia gravesite, called it a "valuable brain tonic."

An elegant Georgian cemetery best known for the grave of the little girl whose murder on Christmas Day remains unsolved.

This small cemetery is all that remains of Atlanta's first Black communities.

The statues commemorate the legendary mass killing of escaped circus monkeys.