Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

The oldest apple tree in the Pacific Northwest.

A beautiful 62-acre Catholic shrine and botanical garden.

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

A heavenly experience, right here on Terra Firma.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Portland had a unique approach to Cold War-era protections.

Home to the only outdoor municipal elevator in the United States.

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

Taking the 3D art experience far beyond blue and red glasses.

The home of the world's first and last remaining "wooly ant."

Tiny horses tethered to antique rings are scattered around the city.

These machines have been collecting dust for decades.

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

Gigantic private toy museum featuring among finest collections of antique mechanical banks in existence.

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!

A sculpture of a salmon swimming through a brick building.

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

This gold-winged spire celebrates the first true flight around the world.

The four tall pillars once marked the entrance of the historic Seattle church that fought for women's suffrage and civil rights.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

This Cold War missile launch site has been abandoned for 40 years.

A frozen relic of Seattle's hydroelectric boom is now a teaching facility for future engineers.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.