A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

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

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

Beyond being incredibly fun, not much can be said about the Hole with certitude.

This sculpture forces visitors to confront their relationship with space.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A wall of chewing gum moonlights as collective art.

A walk through the historic city center, under the streets of Seattle.

Post office plaque commemorates local resistance to a cult invasion.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

The highest point in Washington state is a volcano covered in glaciers.

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

100-year-old shipwreck you can walk up to at low tide.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

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

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

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

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

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

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

This charmingly homemade amusement park has been growing for 40 years.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

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.