A house carved into a rock in the 1940s.

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

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

Contains a wealth of information about the first exploration and later use of the Green and Colorado Rivers.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

This golf ball–shaped former desert real estate office now houses a UFO museum.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

Don't blink or you'll miss it.

The remains of a boarding school designed to forcibly assimilate Native American children.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

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

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

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

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

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

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

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.

An artificial crater field that trained astronauts for lunar exploration.