American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

This family driveway also serves as the highest point in Illinois.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

A mysteriously dark cemetery monument fuels stories and legends galore.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

The oldest university museum west of the Mississippi retains its 19th century feel.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.