Portland had a unique approach to Cold War-era protections.

Home to the only outdoor municipal elevator in the United States.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

The wooden airship was the largest flying boat ever built.

Home of Howard Hughes' Spruce Goose.

An institution that preserves the history of institutionalization.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Shakespeare has been brought to life in this open air theater for the better part of a century.

A public fountain that spouts "health water" from a nearby spring.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

The largest wooden building in the world now houses a fascinating collection of aircraft.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Two massive rock outcroppings on the Oregon coastline.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

A massive sea stack famous for its appearance in The Goonies.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

A Roman-style column in Oregon hides a spiral staircase inside.

This bridge provides safe passage for squirrels.

The first park built over a freeway is a brutalist masterwork.

A walk through the historic city center, under the streets of Seattle.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

A community gathering place that once housed half-ton tanks and the World's Fair.