These aggressively sustainable art homes look like something out of 1970's science fiction.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

The largest self-built castle in the U.S., six decades in the making.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

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

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

You might recognize this historic Oregon mansion from its appearance in 'The Goonies.'

A Roman-style column in Oregon hides a spiral staircase inside.

100-year-old shipwreck you can walk up to at low tide.

Where Nor'easters go to die.

A massive sea stack famous for its appearance in The Goonies.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

Ride a mechanical corn dog at the alleged birthplace of America's favorite deep-fried wiener.

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

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

The eerie remnants of an ancient forest were hidden under the sand for centuries.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

The building stands within a quiet, postcard-perfect New Mexico village.