Over one million bird-related artifacts await.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

One woman's Viking Castle on Lake Tahoe.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

The drama of nature in full effect in this Nevada State Park.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A 250 million-year-old rock formation has earned a rather unique nickname.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

While you're unlikely to find riches here these days, this remote mine is a time capsule of the Gold Rush era.

This giant temperature attraction created some giant electric bills.

In one of the hottest parts of the Mojave Desert, shallow bedrock forces the typically dry Mojave River to the surface in this canyon, providing a vital oasis for humans and wildlife.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The ghost town that ended up on Ebay.

The world’s largest concentrated solar plant generates as many problems as megawatts.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.