This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The most alien-looking place on Earth.

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

An emerald-green grotto just a short trip from Austin.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

One of the few surviving "Wigwam"-themed motels.

A museum to a cave explorer whose tragic death was a media sensation, and whose corpse became a tourist attraction.

You thought Santa Claus didn't exist, but it turns out you were wrong.

An enormous natural sandstone bridge in Kentucky.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Origin of the blue-skinned Fugates of eastern Kentucky.

Three courses accompanied by Christian rock.

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

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

A life-sized memorial to Harry L. Collins, the official corporate magician of Frito-Lay.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.