Oregon's unexpected high desert, displaying layers of time in a colorful show.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

The oldest apple tree in the Pacific Northwest.

This quiet neighborhood is also home to a 700-ton rock transported by the last Ice Age.

In the absence of a Chinese-language newspaper, for years the community posted daily updates on this simple bulletin board.

An abandoned 19th-century hospital now swirling in ghost stories.

Nuclear reactor created the plutonium used on Nagasaki.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

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

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

Browse through roughly 130,000 titles in the world's largest independent video rental store.

Site of the greatest known waterfall that ever existed.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

Seattle's super-sized cowboy apparel once belonged to a themed gas station that wrangled in herds of tourists.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

A sliver of nostalgia in Seattle's Viretta Park.

Former farm staffed by mental patients is now a public park.

A short hike into the mountainside forest reveals a decaying 1890s town.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Stroll through a wonderland of stupendous moss-covered trees.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.