Step back in time on this preserved 1800s farm.

Enormous lake at the bottom of a unique cave system.

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.

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

A historic dam made famous for its turbines and feature in a Hollywood classic.

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

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

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

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

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

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.

Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

Over 200 people were buried here with only a small stone to mark their final resting place.

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

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

Mile-long cave system near Great Smoky Mountains.

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

An ode to "The Queen of Appalachia."

One of the Cemestos prefab homes built to secretly house thousands of Manhattan Project workers.

The secret city built by the Manhattan Project.