A miniature city built by a single hunchbacked monk.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

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

An ode to "The Queen of Appalachia."

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

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

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

One person's lost luggage is another person's treasure.

Live long and prosper in Tennessee.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

This historic train station has been converted to a locomotive themed hotel.

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

This labyrinth was designed to help visitors focus and meditate.

A colorful square marks the heart of the city's LGBTQ community.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

This natural spring not only claims to heal the wounded but it has also been willed to God.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

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

A humid oasis combines recreation with exploration in a unique underwater cavern.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

A stockpile of childhood lunch pails turned collectibles.