Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

This collection of neon icons is preserving Arizona's history, one sign at a time.

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

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

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

The fading, forgotten remains of a once bright and booming factory.

The Magical World of George Phar Legler.

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

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

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

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

Once disputed as the largest sundial in the world.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.

A replica of the flagpole that gave a frontier town its name.

This high desert botanical garden is a unique display of Northern New Mexico's geology.

Home of the International Space Hall of Fame.

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

A blacklight journey through a celestial art exhibit.

A sprawling collection of over 106,000 toys from around the world.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

This quirky hot springs town known to locals as "T or C" was named after a radio show.