Outside this souvenir shop is a statue of Bigfoot composed of volcanic ash, and plenty more to see inside.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

An abandoned World War II bunker is part of a chain that runs throughout Washington.

A graveyard for early settlers, sometimes called Old Pioneer Cemetery, hidden in the woods on a hillside.

On the edge of this small Washington Park, a piece of the Earth's mantle has come to the surface.

One man's eclectic collection of treasures found at sea.

An eclectic collection of wind-powered sculptures made from found and recycled materials.

Like your grandma's attic—if your grandma were a little weirder, extremely well-traveled, and had a great eye for art.

The crumbling remains of a gold mine that was operational in the 1930s.

This tree has witnessed nearly 1,000 years of history.

An early 20th-century fruit warehouse home of an artistic and cultural renaissance in northeastern Washington.

Gold, silver, copper, lead, and zinc were once extracted at this abandoned mine near Lookout Mountain.

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

The tiny church offers succor to travelers driving by, but only eight at a time.

A giant milk bottle from the 1930s beckons drivers to this diner.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

An abandoned 19th-century hospital now swirling in ghost stories.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

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

The century-old remains of an abandoned farm town in eastern Washington.

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

A nearly abandoned 19th-century town on the Palouse.