These early tent-shaped grave coverings are unique to Appalachia.

Mile-long cave system near Great Smoky Mountains.

More than five miles of underground passageways.

Visit this playground of waterfalls, caves and sinkholes.

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

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

All that's left of the quintessential "cabin in the woods."

Home of an evil witch famous within southern folklore.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Elvis's own personal tropical hideaway.

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

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

This award-winning men's bathroom was just too beautiful to not allow women to see.

Live long and prosper in Tennessee.

The first full-scale tunnel built in America is short but scenic.