Collection of fossils, plants, and ancient animals encased in amber.

Hundreds of pieces of ancient Taíno art cover the walls of this Caribbean cave system.

Oldest unrestored plantation house in America that is open to the public.

Step past the gas pumps and into a fine French bistro.

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

Enormous lake at the bottom of a unique cave system.

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

This Tennessee manse was built so opulent that the very utilities doomed it to fail.

The secret city built by the Manhattan Project.

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

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

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

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

This bridge is haunted by the ghost of a distraught mother.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

One of the oldest living oak trees in the Southeast.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

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

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

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.

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

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.