The longest continuous lava tube in Oregon.

Treehouse motel and treehouse-building school.

Only known mainland rookery of the threatened Stellar sea lion.

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

This charmingly homemade amusement park has been growing for 40 years.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

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

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

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

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Get your cosplay on at Portland’s only Medieval fantasy-themed mead hall.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

The largest and most well-preserved petroglyph site in the Verde Valley.

Architectural elements and building materials for this house were transported from Salisbury, England.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

A century-old miner's quarters turned mansion.

Stock up on all your horror paraphernalia at this year-round Halloween emporium.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.