The longest continuous lava tube in Oregon.

Only known mainland rookery of the threatened Stellar sea lion.

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

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

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

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

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