A volcanic core jutting above the plain between the Snake and Boise Rivers, a marker identifies the reference point for all U.S. Government Surveys in Idaho.

Boise State's stadium was the first non-green football field in the world.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

This set of hot springs also comes with fantastic views.

See just what life was like in a 19th-century prospecting town.

A large wind turbine installation in central Washington State is home to an extensive set of interpretive exhibits.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

This gold-winged spire celebrates the first true flight around the world.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

This rustic old building is said to be the most photographed barn in America.

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

An architect's childhood fantasy treehouse made real.

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.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The location where the iconic movie character declared it was time to go home.

A tunnel with windows, so you don't miss out on the impressive views.