This crumbling stump is all that remains of what was once thought to be the oldest living organism.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.

This central Nevada cave is the spiritual home of ancient and enigmatic pictographs.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

The longest living non-clonal organisms on Earth.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This spectacular fault escarpment, a popular hang-glider launch point, extends some 30 miles long and towers about 2,500 feet over the valley floors to the west.

Oregon's only closed-basin hypersaline lake, an important stopover for migrating waterfowl, is in danger of drying up completely.

A haven for wildlife amid the farmlands and development of the Willamette River Valley.

In eastern Oregon, two mineral hot springs sit along the Malheur River in a fairly desolate area where peace and quiet are abound.

Now a secluded county park, this site was once a "health tourism" destination for wealthy Oregonians.

Spectacular volcanic cliffs along the Crooked River invite hiking, rock climbing, and photography.

This 85-foot-long table is made from a single slice of an old-growth Douglas Fir.

An art gallery home to a plethora of art from local artists who can often be seen hard at work.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

During its heyday, 72 one-ton buckets from this dredge bore into the Powder River excavating vast gold deposits.