A Spiritualist house of worship where believers communicate with the dead in the spirit world.

The walls of the iconic dome are hollow and have a secret stairway.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

The United States Capitol's former columns still stand.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

This large maar crater in Oregon is the bigger brother to Hole in the Ground.

Stepping inside this coffee shop is a journey through time.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

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

At the base of Steens Mountain resides an otherworldly desert.

A tiny art gallery in Sunnyside helps keep Portland weird.

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

This Portland shop is brimming with natural wonders, local art, and handmade goods fashioned from recycled materials.

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

This great stone guardian of the forest is a relic from the land's volatile volcanic past.

The oldest tofu shop in the United States is a firm favorite with locals.

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

Sasqu(w)atch out!

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

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.

World's only nuclear reactor operated by liberal arts undergraduates.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.

A volcanic landmark located on an Ice age lake bed.