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

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

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

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.

This naval gun is fired every day at noon, an odd timekeeping tradition the origin of which is local legend.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

A cynical face-off exposing the cost of war.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

Experience what life was like in Ireland during the Viking and medieval ages.

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Site of a classic 19th-century physics experiment to prove the earth is rotating.

France's most famous cemetery, with some of its most curious tombs.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Scattered throughout London are ancient remnants of the city's former bounding wall.