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.

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

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

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

Private collection of art inspired by cabinets of curiosity.

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

Hollowed out cedar log tubs set in an ancient towering forest.

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.

The seamy, underground secrets of Portland's criminal past.

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

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A huge musical instrument played by the ocean.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The crumbling remains of a gold mine that was operational in the 1930s.

Gold, silver, copper, lead, and zinc were once extracted at this abandoned mine near Lookout Mountain.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

A museum dedicated to an elusive cryptid.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

This unique library spans a mighty river.

People come from across the globe to swim in this lake believed to have healing properties.

This beautiful landscape is the only Sichuan-style garden outside of China.

"The Reptile Man's" very own roadside zoo features an albino alligator.