The seamy, underground secrets of Portland's criminal past.

Humboldt's human-powered sculptures race across land and sea for days on end in a wacky quest for dominance.

This parking garage has given itself over to graffiti artists and the neighborhood can't thank them enough.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

Old submarine parts have been converted into faux whale fins.

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

What's that on the side of that building? Va Va Voom, it's Bettie!

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

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

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

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

A heavenly experience, right here on Terra Firma.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

An obscure waterfall that looks like something out of a fantasy novel.

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

The second tallest railway trestle bridge in America.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

Giant scissors seemingly stabbed into the side of a hair salon leave no question about the vocation of the owners.

Factory that once supported an entire company town of 350.

An alley covered with 20 years of bubble gum.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.