Legend says entire herds of cattle have disappeared within this boulder-strewn landscape.

This museum explores the grim reality of life in the earliest British colonies in America.

These magnificently sculpted tombs represent Spain's own legendary version of "Romeo and Juliet."

You'll find the little birds tucked within the rocks of this Australian beach.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

This unique medieval artwork featuring the story of the Antichrist remained lost for decades.

This hidden bridge is where local children leave gifts and messages for the island's fay folk.

The plunge pool is a surviving relic of a rowdy royal residence.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Wander among the abandoned ruins of this once-powerful medieval town.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

But did the famous feminist and abolitionist ever really say those iconic four words?

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The angel of death appears to weep black tears at this grave marker.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

More than five miles of underground passageways.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

The remains of the great moral philosopher reside in a university in London.

This 1920s Dutch barge is now a floating bookstore.