This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The cinder cone volcano with a less than complimentary name.

The eroded core of an ancient volcano is now accessible by a short hike.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

A mysteriously dark cemetery monument fuels stories and legends galore.

Home with Gothic windows featured in a famous painting.

The park is home to the United States's only still-operating Dutch windmill.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

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.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

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

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A unique outdoor timepiece at a "clothing-optional" resort.

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

A singular collection of hand-built art deco cars are held in a building with style to match.

A tunnel with windows, so you don't miss out on the impressive views.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.