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

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

A bizarre roadside attraction and the first instance of miniature golf in the world.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

This tiny, charming synagogue in the Cayman Islands was built by a man as a present for his Jewish wife.

One of the oldest living oak trees in the Southeast.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Paths are maintained, but trees have taken over plots.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The oldest liquor store in the country is a model of resilience and mischief.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

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

This hotel was used during the Manhattan Project to house official visitors.

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

The secret city built by the Manhattan Project.

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

The world's largest version of this iconic puzzle cube is located in Knoxville, Tennessee.

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

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

An ode to "The Queen of Appalachia."

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