This Tennessee manse was built so opulent that the very utilities doomed it to fail.

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

John Hendrix predicted the creation of the "Secret City" built as part of the Manhattan Project.

The alley connecting two of country music’s most historic venues has a rich history of its own.

This church houses the “incorrupt” body of its founding Bishop.

This museum pays tribute to the Cherokee leader who created a written language for his people.

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

Over 200 people were buried here with only a small stone to mark their final resting place.

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.

Follow the steps, and this roadside artwork will teach you how to dance.

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

A bronze sculpture honors the 12 black students who attended the first integrated public high school in the segregated South.

Mysterious library of an infamous financier and spiritual seeker.

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

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

This defunct, fortress-like prison has been the setting for several movies.

Dinosaurs invade a suburban Nashville neighborhood.

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

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

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

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

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

The site of the one of the most deadly train wrecks in American history.