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

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

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

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

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

More than five miles of underground passageways.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Mile-long cave system near Great Smoky Mountains.

This replica of the Greek structure is in the heart of Nashville.

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

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

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

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