Deadly airliner crash preserved for those willing to climb and pay respects.

An abandoned amusement park based on the popular 1940s Red Ryder comic strip.

Home of the International Space Hall of Fame.

The world's first commercial spaceport is a disappointment of cosmic proportions.

This is one really big nut.

A cave's rare beauty held a cavernous secret hidden underground.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

"I did this all while you were watching TV."

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A clear blue swimming hole with hidden caves, still unexplored.

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

A museum dedicated to the alleged Roswell Incident.

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

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

An amazing collection of model trains, collectibles, and artifacts that span the last 100 years.

One of the largest private collections of cars manufactured by the short-lived Franklin Automobile Company.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

This scrap yard doubles as a naive art gallery full of found art and farm animals.