The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The oldest building in Charleston was used to store gunpowder during the American Revolution.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.

The oldest liquor store in the country is a model of resilience and mischief.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

An advertising mural tempering the behavior of Charleston’s children since the late 1800s.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

Spend a hour meandering, breathing, and learning along this lovely untouted path that connects historic gardens.

Paths are maintained, but trees have taken over plots.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Inspired by the work of a German artist, these brass installations commemorate the lives of enslaved Vermonters.

Vermont's hills are alive with the sound of music at this historic hotel.

A stone marker dedicated to the “Father of American Education.”

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

This New England drive-in was built to straddle the border between two states.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.

This unassuming Massachusetts residence was built with a trap door to hide escapees on the Underground Railroad.

Tiny memorials honor individual victims of the Holocaust.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A thin golden line commemorates the deadliest terrorist attack in recent German history.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.