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

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The wooden airship was the largest flying boat ever built.

Entering this curiosity shop is like stepping into a mad scientist's lab.

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

This natural marble cave is one of only five national monuments in Oregon.

The largest wooden building in the world now houses a fascinating collection of aircraft.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

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

Home of Howard Hughes' Spruce Goose.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

Post office plaque commemorates local resistance to a cult invasion.

Shakespeare has been brought to life in this open air theater for the better part of a century.

These machines have been collecting dust for decades.

Inside a humble hangar is some of the best roller derby the world has to offer.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

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

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

Tens of thousands of tiny birds swarm into one school chimney every fall.

This sandstone mansion was the home of two of Oregon's most important pioneers.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.

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