Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The longest living non-clonal organisms on Earth.

A picture-perfect town, perfect for blowing up.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

One of the largest open-pit copper mining operations in the entire country.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

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

Ancient pueblos built into the base of a natural canyon wall.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

Limestone caves with spectacular showcase chambers.

The world's largest military aircraft cemetery.

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

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

America's only nuclear missile silo open to the public.

One of the largest, oldest, darkest, quietest motel rooms in the world.

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

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

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

A reproduction of earth's many biomes.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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