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

The secluded site of a 1943 plane crash and amazing rescue is only accessible by hiking through the woods.

Every four years, millions of salmon fill a river so densely that its waters appear deep crimson.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

This frequently-photographed waterfall takes only a short hike to visit.

A wild west land agreement was etched right onto this historic Idaho stone.

Make it an offering.

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

An old World War II hangar holds 20 vintage aircraft and the rare opportunity to take a ride in a 1940s warbird.

An institution that preserves the history of institutionalization.

An obscure waterfall that looks like something out of a fantasy novel.

Hollowed out cedar log tubs set in an ancient towering forest.

The wreckage still sits at the exact spot the plane crash-landed in 1945, carrying 1,000 pounds of explosives.

The wooden airship was the largest flying boat ever built.

Home of Howard Hughes' Spruce Goose.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

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

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

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 U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

10,000 flowered plants bloom in the City of Roses.

One of the world's tallest, oldest, and most disgusting chocolate cascades.