A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

A eclectic collection of military memorabilia.

It reportedly took three years to sort through all the objects in this eclectic lifelong collection.

Its unique collection details the history of the state's svelte railroads.

The United States' oldest Episcopal church still in active use.

The longest and widest floating bridge in the world.

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

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

This Nebraska museum was once the smallest courthouse in America.

Legend has it the mill owner's daughter, Mary Musgrove, helped a Patriot soldier hide behind these falls.

Tombstones carved to look like tree trunks are used for multiple generations of family members.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

The stone-covered graves lie within the ruins of an Old West ghost town.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

This Mississippi seminary was the first in America to train Black Catholic priests.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

A place for ship-lovers to watch the passage of freighters traversing the Great Lakes while learning about their history.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

This quaint museum lets you take a ride on its antique carousels.

The remains of the first public diamond mine in Arkansas.

The lowest point in South Dakota and the source of the Minnesota River.

New Plymouth, Idaho is the only U-shaped town in the United States.

This circus town museum recognizes the outstanding clowns of history.