This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

Home to a 26-foot-tall statue of an American icon.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

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

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

This quiet park's strange sedimentary spires were named after Kodak's color film.

The unusual burial monument of Arizona's first governor.

A museum and tribute to a brave profession.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

The unusual patterns in this rock formation result from two distinct modes of weathering.

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

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

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

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

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

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This quirky museum has a collection of more than 15,000 bobblehead dolls.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.