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

The unique circular corral belonging to the “Cattle King” of Oregon.

At the base of Steens Mountain resides an otherworldly desert.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

The largest outdoor art gallery in the Northwest United States.

Jail from the 19th century that was built by inmates.

A man-made island in scenic San Francisco Bay.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Internationally-recognized arts center housed in a century-old former military barracks.

Concrete strongholds stand guard over the Golden Gate.

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

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

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

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

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

This super-sized skillet is a replica of a usable giant pan where a woman once skated on bacon.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

100-year-old shipwreck you can walk up to at low tide.

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

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A short hike into the mountainside forest reveals a decaying 1890s town.

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

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

Four abandoned towers hidden above the Douglas fir forest in Washington.