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

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Standing 191 feet tall and measuring more than 55 feet in circumference, this is the world's tallest spruce tree.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

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

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

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

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

A tiny plaque hidden miles into the Washington wilderness is all that remains to honor a shipwreck that left 18 people dead.

Shoreline strewn with the remains of ghostly fallen trees.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

Built in 1890, this is the last remaining wooden fire bell tower in the United States.

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

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

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

A historic hotel with many stories of haunted activity.

A magical sanctuary of mythological statuary.

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

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

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

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.

Sweet or salty, super hot or mixed into beer, this is the holy land for all things licorice.

The boulder is a landmark, public art, and an icon.

The window above the urinal in the men's restroom is a giant periscope that offers a panoramic view of Eagle Harbor.