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

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

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

This private residence was the template for one of the most beloved television homes of all time.

'Cause the fence start shaking, the earth was quaking.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

This ghost town houses the remains of Alabama's old state capital.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

A Christian-themed amusement park and complex rocked by scandals.

The remains of a chapel created for convenience.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

A Beaux-Arts triumph set to become Ford's innovation campus

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A beautiful geyser under environmental threat.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.