Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

This geothermal hot spring hides beneath a slowly growing mineral dome.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

Legends surround this jagged rock formation in the New Mexico desert.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One of the American Southwest's most extensive collections of Navajo rock art.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

When ecosystems collide in the arid Southwest.

The largest source of fossilized insects anywhere.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The Grand Canyon of Texas.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

Thousands of unique minerals, including some of the most impressive fluorite crystals in the world.