One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Miraculous tree that seems to sprout out of solid rock.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

The rockpile was the founding landmark for the town of Gillette, and is now the home of the region's history.

A mental health hospital dating back more than 139 years, now features a museum.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

This enigmatic building features numerous architectural styles.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

The first declared National Monument in the United States.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

A small Wyoming town is home to the state's oldest-operating soda fountain.

The only retired U.S. nuclear missile silo that is open to the public.

The largest source of fossilized insects anywhere.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The hallowed ground of one of the worst atrocities in United States history.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

The highest bridge in America was built for an almost unnervingly small amount of money.