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

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

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

A free museum that memorializes the deadliest river flood in American history, and the civil engineering efforts to tame the Mississippi River.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Art blooms at this unique outdoor gallery along the banks of the Arkansas River.

Yup, that's where the name came from.

This coastal rock formation resembles a churning cauldron at high tide.

In the high desert east of Bend, the University of Oregon maintains a research observatory on a remote mountain peak.

A haven for wildlife amid the farmlands and development of the Willamette River Valley.

Now a secluded county park, this site was once a "health tourism" destination for wealthy Oregonians.

Atop an active stratovolcano, two lakes separated by a narrow strip of land.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

The unique circular corral belonging to the “Cattle King” of Oregon.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

Ride a mechanical corn dog at the alleged birthplace of America's favorite deep-fried wiener.

The steepest tramway in North America provides stunning views of the out-of-the-way Wallowa Mountains in northeastern Oregon.

A bronze replica of half-consumed salt lick honors a quirky town tradition.

The last water-powered mill in Oregon is open daily for free tours and has a surprising history.

A 36-ton remnant of the last Ice Age now resides amid picturesque vineyards.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

Home of Howard Hughes' Spruce Goose.

The wooden airship was the largest flying boat ever built.

A volcanic landmark located on an Ice age lake bed.