The unusual medical inventions of the man who gave the world Corn Flakes.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

The birthplace of a titan of American cinema.

The “American Gothic" artist's largest works hang in an Iowa State University library.

Most comprehensive museum in America devoted to one ethnic group.

An old town theater converted into a celebration of the hobo legacy.

Home with Gothic windows featured in a famous painting.

Now nearly abandoned, Kaskaskia was once the capital of Illinois and one of the most important towns on the upper Mississippi.

Chicago’s incendiary role in the labor movement.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

Home to a protest movement, a bombing, and a dramatic change in labor history.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

First planned industrial community in the United States.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

A rancher expanding a natural spring for his cattle came up with bones – lots and lots of them.

A museum documents the development of the invention that tamed the Wild West.

A Mormon place of exile in Missouri.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

Where the author wrote her beloved "Little House" books.