A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

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

A perfectly preserved small-town pharmacy and soda fountain that opened in the early 20th century and closed in the 1980s.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

This sign designates the road that leads to the infamous Area 51.

Mysterious meeting place for UFO hunters near Area 51.

The self-proclaimed gateway to the Extraterrestrial Highway.

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

Mysterious glowing orbs float through the desert night.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

This is one really big nut.

A Prada store in the West Texas desert that is never open for business.

This is probably not the Target you're looking for.