Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

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

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The first permanent memorial to a unique secret weapon of World War II.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

Take a monster truck tour around an ostrich farm in the middle of the desert.

The eroded core of an ancient volcano is now accessible by a short hike.

This giant steer-skull edifice refuses to die.

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

These free-roaming horses were once destined to disappear from the land.

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

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

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

An homage to everyone's favorite prehistoric cartoon family.

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

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

Rippling sand dunes frozen in the Arizona rock.

Temporary Burning Man sculpture made of two 18-wheelers.

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

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.