This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

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

Home of Howard Hughes' Spruce Goose.

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

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

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

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

Where Nor'easters go to die.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

A massive sea stack famous for its appearance in The Goonies.

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

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The ritual has been performed uninterrupted for nearly 700 years.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

An architectural oddity hides in plain sight on this iconic London bridge.

A unique tribute to the millions of animals who served and died for the British military.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Scattered throughout London are ancient remnants of the city's former bounding wall.