The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

An old World War II hangar holds 20 vintage aircraft and the rare opportunity to take a ride in a 1940s warbird.

At the base of Steens Mountain resides an otherworldly desert.

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

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

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

A Roman-style column in Oregon hides a spiral staircase inside.

Instead of fruit, the branches of this tree are brimming with hopes and dreams.

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

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

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

Formerly secret, precariously perched boulders.

10,000 flowered plants bloom in the City of Roses.

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.

A heavenly experience, right here on Terra Firma.

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.

An off-the-beaten path cave with an underground lake.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

Take a monster truck tour around an ostrich farm in the middle of the desert.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

In Tucson a giant metal snake helps pedestrians cross a busy highway.