Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Paths are maintained, but trees have taken over plots.

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

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

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

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

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

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

The oldest structure in a beachside California city was built to serve eight students.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

Only the original archway remains from the building where a false cry of "fire" started a panic that claimed more than 70 lives on Christmas Eve in 1913.

On the shores of Lake Superior, a small group of monks makes sacred sweets.

"The Most Boring Road in the State."

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A historic presidential getaway on the continental United States' southernmost island.

The highway's southernmost spot is a beloved local attraction.

"We Seceded Where Others Failed."

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This chimerical bridge/tunnel appears to dead end right into the sea.

Site of the first radio and telephone broadcasting companies in Copenhagen.

The only surviving piece of Copenhagen's 16th-century defensive wall.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

This ordinary street was made infamous by a legendary visit from the devil.