This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

This museum pays tribute to the Cherokee leader who created a written language for his people.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

This improbable contraption was passed down through five generations of industrious Tennesseans.

The physical legacy of one man’s lifetime mission, following a near-fatal mine accident, to publicly proselytize for Christianity.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

At one of the nation’s longest-running professional theaters, the audience used to barter for tickets with produce and livestock.

Country fans may flock to Nashville's music scene, but this Appalachian town is where the genre was born.

One street divides a single town that stands in two U.S. states.

Visit the art studio of an early 20th-century painter, hidden amid the Great Smoky Mountains.

An abandoned town is hidden in Great Smoky Mountains National Park.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

An ode to "The Queen of Appalachia."

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

This hotel was used during the Manhattan Project to house official visitors.

The secret city built by the Manhattan Project.

This Tennessee manse was built so opulent that the very utilities doomed it to fail.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

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