Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This mysterious marker puzzles pedestrians and infuriates geographers.

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

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The wooden airship was the largest flying boat ever built.

All aboard the world's longest miniature railway.

Home to the only outdoor municipal elevator in the United States.

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

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

A tourist attraction founded around a slumping cabin.

Formerly secret, precariously perched boulders.

Massive crater in central Oregon.

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

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

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

Only known mainland rookery of the threatened Stellar sea lion.

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.

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.

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.