This town is home to the world’s largest arch constructed entirely of elk antlers.

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

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

A nearly 200-year-old Catholic mission built to serve the native people of Idaho.

Cross the Continental Divide through an old railroad tunnel, and ride back to the top on a shuttle.

A miner's handmade folk art fountains are tucked in the woods off a multilane highway. 

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

The largest outdoor art gallery in the Northwest United States.

Home to the deepest rift anywhere on Earth.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

A memorial to the most decisive Native American victory of the Plains Indian War.

Mining caused an asbestos emergency in this small town.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

A smoke stack so large, the Washington Monument could fit inside!

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

A classic carnival ride that was carved to be untouchable.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

A working ranch doubles as a sustainable hub for world-renowned classical music and large-scale sculptures.

The formidable fowl can be found standing near an isolated hiking path.

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

An entire town preserved as a historic landmark.