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

A volcanic landmark located on an Ice age lake bed.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

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

A chance to sleep among the firs and pines of the Oregon forest.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

A sculpture of a salmon swimming through a brick building.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Massive crater in central Oregon.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

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

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

Only known mainland rookery of the threatened Stellar sea lion.

The longest continuous lava tube in Oregon.

Treehouse motel and treehouse-building school.

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

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

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

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

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

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

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

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