For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Stroll around the headstones of notable figures from Knoxville's history, as well as towering monoliths and melancholic headstones.

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

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

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

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

This huge clock made of flowers and simple machinery was once used a political weapon.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

This tower was once used to create ammunition for early settlers.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

A wedding chapel, vintage clothing shop, and bar all under one roof.

A nourishing complex of found object art, paintings, and sculptures that celebrate key figures in Black history.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

This bridge is haunted by the ghost of a distraught mother.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

Every week, a festive public jam session breaks out in downtown Asheville.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

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.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

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

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