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

An entire town preserved as a historic landmark.

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

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

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

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

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

Home to the deepest rift anywhere on Earth.

The famous 102-year-old circus elephant was struck and killed by lightning.

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

This museum, established in Butte's lost Chinatown, celebrates Asian-American culture in what was once the world's largest mining camp.

The oldest continuously-operating Chinese restaurant in the United States has been in business since 1911.

New fungal and bacterial species call this deadly lake home.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

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

A classic carnival ride that was carved to be untouchable.

This landmark church at the Flathead Reservation mission features 58 ceiling and wall frescoes painted by the mission's cook.

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

The only road through the heart of Glacier National Park.

Spectacular views await visitors to this lake.

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."

The mayor made the declaration in 2004.

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

This playground sculpture of an icon from the past is dedicated to the children of the future.