One man has spent decades faithfully constructing this unique brick and cinderblock castle.

For decades these polar bears have roamed all around a Nashville neighborhood.

The pan man stands as a testament to the functionality of American cast iron cookware.

An homage to the pointers and retrievers that have long been a hunter's best friend.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

This improbable contraption was passed down through five generations of industrious Tennesseans.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

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

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

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

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

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

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

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

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

An oversized metal construction of Billy Tripp's moods going through life.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

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

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

Live long and prosper in Tennessee.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

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

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