One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

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

This shallow cave got its name from copious amount of human bones found inside.

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

A Northwoods sporting competition that shows lumber jacks doing much more than cutting down trees.

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

Legs Inn provides Polish food, a cornucopia of Native American artwork, wood carvings, and mounted deer heads.

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

The largest historic preservation organization in the United States.

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

You thought Santa Claus didn't exist, but it turns out you were wrong.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

The only freestanding table rock formation east of the Mississippi.

One-layer pyramid in Indiana.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

This mysterious hill seems to pull objects uphill.

If astronomy had a ghost, it would look like this observatory.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

Like Mardi Gras, only everyone's a pirate.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.