This massive solar generating facility in the Nevada desert has been plagued by difficulties.

The highest concentration of petroglyph sites in Gold Butte National Monument, plus an improbable early 20th-century dam.

At the western edge of Palm Springs, a rugged desert canyon trail leads to a waterfall at the base of the San Jacinto Mountains.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

Once a staging site for World War II munitions.

The oldest hotel in Nevada.

A fire lookout atop a glacial pinnacle is reached by climbing three vertiginous flights of stairs.

The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

The strongest earthquake in Nevada's recorded history left these spectacular breaks along the west front of a range in central Nevada.

A memorial to the unknown and unheralded men and women of the Cold War military and intelligence services.

The only thing still moving in this town is the eponymous hot spring.

Colorful sedimentary rock layers provide opportunities both for hiking and photography.

This music school doubles as a store for unique, hand-crafted, and hard-to-find instruments.

Explore more than 130,000 new and used books in the "world's largest outdoor bookstore."

Dedicated to an airmail pilot who never let go of his important payload.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

With its vaulted ceiling and gilded details, this University of Washington library would feel right at home inside an old palace.

This former New Jersey bus now exists as a public art exhibit.

A natural dome made of volcanic glass in Inyo National Forest.

This former mining railroad is one of the best-preserved short lines in North America.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

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

California's longest-running tourist attraction is a stump.

This large chunk of dark rock is a relic from an ancient volcanic eruption.