The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

Visit a church sculpted from hardened lava.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

This small museum is home to some of the oldest and best-preserved dinosaur specimens found in Montana.

This remote Montana battlefield is the site of the Nez Perce Flight of 1877.

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

The shortest river in America flows for just 201 feet.

Touch an actual dinosaur bone at this eclectic trove of Rocky Mountain treasures.

Every drop of water in this 27-mile long reservoir was pumped up from the Columbia River using power from Grand Coulee Dam.

Site of the greatest known waterfall that ever existed.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

People come from across the globe to swim in this lake believed to have healing properties.

An enormous boulder deposited by the Scabland floods lies in the Quincy Basin among a host of smaller boulders.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

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

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

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

A former railroad trestle over Interstate 90 has been refurbished for non-motorized traffic on the Palouse to Cascades trail.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

This ancient Hawaiian henge may have been an early star chart.

At this airport "microcinema," you can catch a film before you catch a flight.

The magic's in the hole!