This erect, phallic geological spire wasn't always named so domestically.

A devilishly named gorge that was a sign of salvation for many pioneers.

A small Wyoming town is home to the state's oldest-operating soda fountain.

Miraculous tree that seems to sprout out of solid rock.

This rustic old building is said to be the most photographed barn in America.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A miraculous natural phenomenon known as "the spring that breathes."

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Native Americans built this circle of stones, which was used to predict astronomical events.

This town is home to the world’s largest arch constructed entirely of elk antlers.

At the time of its completion, it was the tallest dam in the world.

Population: 1.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

One of the smallest towns in the United States.

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.

The first declared National Monument in the United States.

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

A series of labyrinths in the Nevada desert inspire meditation and calmness.

An enormous illuminated figure dances on the Las Vegas strip.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.