In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

Founded by a man who called himself the greatest hunter alive.

Tucked away atop a quaint Alabama pharmacy is this tiny display of antique medical tools.

Abstract marble carving for an 8.5-pound rock.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

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

Amazing taxidermy dioramas from the 1960s in a cement building meant to look like an ice cave.

An abandoned theme park with a strange and tumultuous past.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

The highest point in Florida is still the lowest high point in the country.

Built in 1785, this residence is the oldest stone house in Georgia.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

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

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Coca Cola may be "the real thing" but its inventor, buried at this Georgia gravesite, called it a "valuable brain tonic."

Inside this small brick bungalow is a collection of toys intended for the afterlife.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

A museum dedicated exclusively to aircraft used in the military.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.