The remains of a chapel created for convenience.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Two massive rock outcroppings on the Oregon coastline.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

A volcanic fissure over two miles long and up to 70 feet deep.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Built 1,500 years ago, this abandoned Mesoamerican city is surrounded by a natural wall made of outstanding rock formations.

This long-abandoned village sits across a narrow gorge from a still-inhabited settlement that was once its twin.

This crumbling coast and its teetering tower are literally filled with history, but they are also at great risk of becoming history themselves.

At Brandy Station, Civil War soldiers left their mark on the battlefield and the walls of this small wooden house.

A serene desert oasis speckled with ancient artifacts.

The home of Ireland's last leprechauns is officially protected by the European Union.

Historic, 19th-century wagon wheel ruts cut into soft volcanic ash.

These quintessentially English stepping stones were built for Victorian tourists.

This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.

A winding medieval path was used by mourners to carry their dead to the nearest church.