An unusual art exhibition in a suburban yard is designed to awaken the souls of those flowing by.

Beside some power panels, a plaque celebrates the history of an alternate world.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

The world's first time capsule lies behind a welded steel door in Atlanta.

The ruins of a paper mill destroyed during the Civil War still tower over a tributary of the Chattahoochee River.

This vast kitty-themed collection illustrates the history of human-cat interaction.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

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

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

A heartwarming message to those entering and departing Music City from above.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

This mysterious twin turboprop Grumman G-159 covered in graffiti has spent a decade and a half abandoned.

A wonderland of folk art including the World’s Largest Grit. 

Hidden amid a collection of trails is the site of a tragic crash.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.