Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A blacklight journey through a celestial art exhibit.

A Mysterious Masonic tomb in San Luis Obispo.

Commonly referred to as the most photographed Victorian home in the United States.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

This statue and its surrounding plaques tells the story of Ko-kwal-alwoot and the kinship between the Samish people and the sea.

The highest point in Washington state is a volcano covered in glaciers.

A short hike into the mountainside forest reveals a decaying 1890s town.

The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

The remains of a former logging boom town, crumbled away in the forest.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

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

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

The second tallest railway trestle bridge in America.

What's that on the side of that building? Va Va Voom, it's Bettie!

Browse through roughly 130,000 titles in the world's largest independent video rental store.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

The flock of plastic poultry is an ode to the classic comedy staple.