Long-secret natural history museum, featuring the skull of a "Terror Bird."

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

Cemetery established by the Victorians as a solution to the overflowing graveyards.

A unique museum that uses visual art and storytelling to reveal the hidden history of the Gullah Geechee and their African ancestors.

Not only is this nature preserve the largest protected freshwater island on the East Coast, but it’s also a stronghold of Gullah living.

A haunting—but not haunted—chapel remains in the woods.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

An isolated beacon with a history of grisly murder and a view of some of literature's greatest inspirations.

A former connection to City Island, it has been abandoned since the 1930s.

The loneliest island in New York.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

Mysterious installations bring levity and light to a sometimes stodgy city.

A fiery crater has been burning in the Karakum Desert since 1971.

A museum dedicated to a unique ecosystem.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

The first declared National Monument in the United States.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

If it wasn’t for an innovative use of quilts during a crisis, the city of Panguitch might not exist today.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.