This sculpture is a cross between an observatory and an earth mound to honor the community's rich history.

One of the first intercontinental ballistic missile sites in the United States.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

Rare recess caves fill this unbelievably beautiful Ohio park.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

From the 1940 Ford Coupe that started it all 50 years ago, this collection of over 150 classic vehicles celebrates the spirit and history of American car craft.

This maze-like, oceanfront gift shop—the nation’s largest— has been serving kitsch to the Myrtle Beach community for over 80 years.

A ceramic-tiled room at the Seelbach Hotel said to have secret tunnels used by Al Capone and a crowd that helped inspire F. Scott Fitzgerald's 'The Great Gatsby.'

Marine fossils from the Devonian period are exposed at this park.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

At 431 feet and 10 inches, this is the longest historic covered bridge in the United States.

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

At the top of the hour, this steam-powered clock's eight brass whistles play "Back Home Again in Indiana."

This Indianapolis landmark offers a secret panoramic view of the city. 

This turn of the century jail once held Charles Manson.

The first artificial white water river course in North America cuts right through an Indiana city.

One of the world’s largest living advertisements is made out of pine trees.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

Strange physical sensations and optical contradictions keep visitors coming back for more.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The overgrown remains of one of the premier auto-racing speedways in the Midwest—and also one of the most deadly.