The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

The mysterious 855-foot zigzagging stone wall has been baffling people for centuries.

The only zoo where you can buy animals that won't need feeding.

Turns out fishing with dynamite isn't all that safe.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

An eerie site of reverence for those who have completed an epic journey.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

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

Mile-long cave system near Great Smoky Mountains.

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

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

The world's largest set of the ten commandments lay nestled in the heart of the Great Smoky Mountains.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

This monument claims to display the first pot used to cook a famed Southern stew.

The writing studio of an American adventure author, built in the style of a medieval castle.

The statues honor the state transportation employees who've died while performing their work-related duties.

This solemn facility remembers the cruel effort to compel Native American children to relinquish their culture.

The final resting place of a prominent Chippewa chief and several Native American children.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.