A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

Orcas on display and in the water.

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

Providing the soundtrack to the golden years of the Seattle grunge scene.

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

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

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

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

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

This medieval village/restaurant perpetually celebrates the year 1376.

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

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

"The House That Love Built" is shying away from "The House That Ghosts Love."

A beautiful final resting place for some of the noteworthy deceased.