The longest continuous lava tube in Oregon.

The original span of a high bridge across the deep Crooked River Gorge has been preserved for pedestrian use.

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.

The world's last remaining store of its kind.

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

Post office plaque commemorates local resistance to a cult invasion.

An out-of-the-way state park in Oregon that features both a picturesque waterfall and the ruins of a hydropower plant.

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

This theatre and its amazing marquee harken back to the Golden Age of Hollywood.

No two pieces are exactly the same at Portland's hippo-themed hardware store.

The magic's in the hole!

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

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

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

"Enter and be entertained or annoyed by Dada in Walla Walla."

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

The mayor made the declaration in 2004.

It was once used as a classroom to teach mining skills to local high school students.

An obscure waterfall that looks like something out of a fantasy novel.

In Washington's Yakima Valley lies a town "where dinosaurs roam."

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.