Rippling sand dunes frozen in the Arizona rock.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A Saint Nicholas-themed ghost town in the Mojave desert.

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

Dig for your own trilobites in this goldmine of invertebrates.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Come for the speed, leave in love with the desert.

This sinkhole was created by a tragic industrial accident and continues to ravage the surrounding landscape.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

A warm desert spring holds one of the rarest species on earth.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

Introducing the Green Fairy to her fawning masses.

If New Orleans is the birthplace of the "cocktail," why does their own museum of cocktail memorabilia beg to differ?

A mysterious find dredged from Louisiana waters.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

A miscalculation turns a very shallow freshwater lake into a very deep saltwater lake.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

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

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

A museum dedicated to the alleged Roswell Incident.