On a college campus in the Oklahoma panhandle a museum honors the last piece of the contiguous United States to be classified as No Man's Land.

Steep canyon walls hide a forested oasis in the West Texas desert.

A cave's rare beauty held a cavernous secret hidden underground.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

Home to a vast collection of The Wizard of Oz memorabilia and the site of an infamous theft.

A spooky defunct railroad tunnel now part of a sprawling trail.

An Iron Age hill fort turned scenic nature park.

A museum devoted to osteopathy and its creator, Andrew Still.

At a mile long, the Fort Madison Bridge is the largest double-decker swing-span bridge in the world.

A 30-foot man on a penny-farthing bicycle rides along the banks of the Mississippi.

A mother’s sweet tradition lives on with this unique memorial.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

More than 10,000 spoons, some more than a century old, are gathered here.

A mysteriously dark cemetery monument fuels stories and legends galore.

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

These markers are used to document elevation changes around the famed dam.

Now a city park, this site started as a stage stop, then was a working ranch, and finally became a dude ranch that specialized in letting wannabe divorcees establish Nevada residency.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

At the base of the Spring Mountains, a unique nursery packed with desert plants.

In the Ozarks, a waterfall shoots out from a glorious hole.

The only arched bridge made of stone on the entire Mississippi River.

Home to part of the world’s largest private collection of original manuscripts and documents.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

This stone, said to have once been a young woman, is sacred to the Dakota and Lakota nations.