Enormous lake at the bottom of a unique cave system.

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

This vast kitty-themed collection illustrates the history of human-cat interaction.

An annual celebration of the region's successful elk reintroduction program.

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

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

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

Mile-long cave system near Great Smoky Mountains.

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

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

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.

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

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

This stone memorial pays tribute to a massive shipwreck which was sadly overshadowed by the death of John Wilkes Booth.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

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

Founded in 1925, this folk school attracts students from across the country and preserves traditional Appalachian art.

The scant remains of this flooded historic village can be explored in one of the most remote areas of the Great Smokies.

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

Step back in time on this preserved 1800s farm.

These eerie outliers of the lightning bug family glow a mysterious blue color.

The wooden house where the jazz great learned to play the piano.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.