The longest continuous lava tube in Oregon.

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.

Treehouse motel and treehouse-building school.

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.

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.

At the base of Steens Mountain resides an otherworldly desert.

This large maar crater in Oregon is the bigger brother to Hole in the Ground.

A sprawling cave network created by a lone lava tube.

The victims of a free-floating Japanese bombing during WWII are remembered by this stone monument.

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

The world's last remaining store of its kind.

As a show of peace, a Japanese naval pilot gifted his 400-year-old Samurai sword to the Oregon town he bombed.

Make it an offering.

A stunning landscape of bunkers that once stored chemical weapons.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

This great stone guardian of the forest is a relic from the land's volatile volcanic past.

This natural marble cave is one of only five national monuments in Oregon.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

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

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

A botanic garden full of trees twisted into fantastic shapes and positions.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.