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

Two massive rock outcroppings on the Oregon coastline.

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This comprehensive collection features Native American artifacts dating back centuries.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

One woman's Viking Castle on Lake Tahoe.

An eatery for UFO seekers on the Extraterrestrial Highway.

Canyon walls shrouded in ferns.

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

The longest covered bridge west of the Mississippi River.

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

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

This super-sized skillet is a replica of a usable giant pan where a woman once skated on bacon.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

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

Shoreline strewn with the remains of ghostly fallen trees.

Stroll through a wonderland of stupendous moss-covered trees.