Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

This defunct, fortress-like prison has been the setting for several movies.

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

Dinosaurs invade a suburban Nashville neighborhood.

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

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

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

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.

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

Home to drunken tower-climbing goats... seriously.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

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

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Railroad came. People came. Railroad left. Town died.

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

The secret city built by the Manhattan Project.

Visit this playground of waterfalls, caves and sinkholes.

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

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

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

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

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