This university research project is the U.S. government's weed dealer.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

Shoreline strewn with the remains of ghostly fallen trees.

Stroll through a wonderland of stupendous moss-covered trees.

Pink, packed sanctuary and home of the world's fullest-time Elvis fanatic.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

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

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

Enormous lake at the bottom of a unique cave system.

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

The secret city built by the Manhattan Project.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

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

148 feet long and in the middle of a verdant forest.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

William Faulkner kept his beloved estate wild and untamed.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

This two-room shotgun shack in Tupelo is the birthplace of a King.

This structure among the trees was the result of divine inspiration.