This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

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

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Not far from Mount Rainer, an iron wonderland claims the landscape.

The small town of Poulsbo in Washington state is the next best thing to the Kingdom of Norway.

The longest and widest floating bridge in the world.

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

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

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

Old submarine parts have been converted into faux whale fins.

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

This sci-fi gazebo located in a Washington power town is made from old bits of industrial electrical equipment.

This Spokane mansion and the stories within its walls have been brought back to life, thanks to careful restoration.

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

The decorations were inspired by an unlikely missing treasure.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

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

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

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

This rare, carefully curated collection showcases the history of neon inside a grandiose Elks lodge.

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

Its 27 graveyards represent the many nationalities and ethnic groups that voyaged to this wilderness in the late 19th century.

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

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