This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

This amazingly preserved Gold Rush town is a historian's dream.

This sandstone building is a relic of the Overland Trail.

Features unique photographic collections by women of the American West and historical attractions such as a two-story outhouse.

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.

An unusual geological feature towers over the remains of a dark episode in United States history.

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

A popular rock that acted as a waymarker for American pioneers.

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

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

At the turn of the 20th century, the Minnehaha County courthouse played host to sensational public divorce trials.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

This 19th-century religious artwork was once highly controversial—because it was donated to the church by a divorcee.

Seth Bullock, the sheriff of Deadwood, built this town immediately after Teddy Roosevelt’s death in 1919.

A monument to the forgotten French explorers and their landmark expedition.

One of the first intercontinental ballistic missile sites in the United States.

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

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

A fitting attraction for the corn capital of the world.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.