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

This homegrown adoption center offers a wonderland of feline companionship.

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

The juke joint where legendary soul artists ate, drank, and made merry.

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.

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

The small cave that housed Tennessee's "first citizen."

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

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

Elvis's own personal tropical hideaway.

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

This award-winning men's bathroom was just too beautiful to not allow women to see.

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

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The first full-scale tunnel built in America is short but scenic.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

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

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

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

Mile-long cave system near Great Smoky Mountains.

Walk the whole Mississippi River!

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

Only a few signs remain of the buried Colorado mining town that supplied the uranium for the first atomic bomb.