El Paso's only historic house museum is an adobe mansion built by a prominent multicultural borderlands family.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

See massive fossils that are over 200 million years old in northeastern Arizona.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

This Moab institution functions as both a rock store and a small natural history museum.

The fifth-longest natural arch in the world, and the longest outside China.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

It's safe—and permitted—to walk across these twin natural sandstone arches.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

The location where the iconic movie character declared it was time to go home.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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

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

Dramatic river bend surrounds a natural red-rocked pedestal.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

This Native American settlement dates back to the Pueblo II period.