The longest and widest floating bridge in the world.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

An extraordinary mixture of natural beauty and man-made phenomena.

A wall of chewing gum moonlights as collective art.

A giant Troll lurks under one of Seattle's oldest bridges.

At the base of Steens Mountain resides an otherworldly desert.

A sprawling cave network created by a lone lava tube.

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

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

Make it an offering.

This old-fashioned roadhouse's quirky neon sign is as famous as its enormous dumplings.

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

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

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

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.

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

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

A volcanic landmark located on an Ice age lake bed.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

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

Portlandia is the second-largest copper repoussé statue in the United States.

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