This quiet neighborhood is also home to a 700-ton rock transported by the last Ice Age.

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

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

Over 75 historically themed murals grace the walls of a small Washington city.

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

The longest and widest floating bridge in the world.

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

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

The oldest apple tree in the Pacific Northwest.

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

The cardinal directions, set in stone.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

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

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

An outsider art duo's yard has been turned into a whimsical public gallery.

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

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

This Cold War missile launch site has been abandoned for 40 years.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

"Enter and be entertained or annoyed by Dada in Walla Walla."

An allegedly haunted mansion with a tragic, tawdry past.

This offbeat trailer park is home to vintage peddlers, local artists, indie makers, and more.

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