This crumbling stump is all that remains of what was once thought to be the oldest living organism.

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

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

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

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

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

The drama of nature in full effect in this Nevada State Park.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A sharp bend in a dramatic river canyon cut through red rocks.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

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

The longest living non-clonal organisms on Earth.

Harder layers in colorful sandstone weather out as prominent “fins" and even more intricate and bizarre shapes.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.

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.

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

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

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

This historic national park is covered in the stunning ruins of red rock pueblos.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.