A tunnel with windows, so you don't miss out on the impressive views.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

An unprepossessing storage reservoir in southern Utah has a checkered past.

This 80.33 troy ounces of solid gold is believed to be the largest nugget from Oregon still in its original form.

During its heyday, 72 one-ton buckets from this dredge bore into the Powder River excavating vast gold deposits.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

A former sanitarium where soldiers were sent to recover in the healing waters of hot springs.

Designed in 1887, this clock from the county office clock tower has been restored and is on full display.

An ordinary rancher stumbled upon one of the world’s largest collections of Pliocene horse fossils.

The largest outdoor art gallery in the Northwest United States.

A statue of the owner stands outside of this museum, once the most popular brothel in town.

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

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Boats and fish both find their way through this massive hydroelectric structure.

An extraordinary mixture of natural beauty and man-made phenomena.

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

This old-fashioned roadhouse's quirky neon sign is as famous as its enormous dumplings.

A beautiful 62-acre Catholic shrine and botanical garden.

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.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

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

A sprawling cave network created by a lone lava tube.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.