A permanent open-air exhibition of stunning, and inherently American, public art.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

Thomas Francis Meagher drowned here in 1867, but whether his death was an accident or a murder, nobody knows.

A large, historic railroad trestle over the Columbia River is now open for non-motorized traffic.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A fine, large-aperture telescope available for public use.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Site of a tragedy on the Oregon Trail.

Star garnets are so rare that you can only find them in two places on Earth—here, you can dig for them.

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.

This massive redwood tree has a drive-thru tunnel carved out of its trunk.

Canyon walls shrouded in ferns.

The tallest dam in Montana and top 10 in the country.

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 only road through the heart of Glacier National Park.

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

As a show of peace, a Japanese naval pilot gifted his 400-year-old Samurai sword to the Oregon town he bombed.

The mayor made the declaration in 2004.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Home to the deepest rift anywhere on Earth.

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.