A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

"Polynesia on the Plains."

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."

These giant metal horses graze on a hilltop near the Montana highway.

Native Americans built this circle of stones, which was used to predict astronomical events.

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

America's smallest town is run by its single citizen/mayor/librarian/bartender.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

Eight feet in diameter and more than 24 feet around.

A small burial plot formerly stranded in the middle of a road.

The remains of a historic football stadium that once hosted 50,000 spectators.

Yo, Adrian!

The farm toy capital of the world hosts a museum filled with toy tractors dating back to the late 1800s.

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

Once known as the Illinois Asylum for the Incurable Insane.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

The largest ancient burial mound in Ohio.