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

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

The biggest solar telescope in the world helps reveal the secrets of our sun.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

The cinder cone volcano with a less than complimentary name.

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

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

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

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This golf ball–shaped former desert real estate office now houses a UFO museum.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

An artificial crater field that trained astronauts for lunar exploration.

The world's largest military aircraft cemetery.

Limestone caves with spectacular showcase chambers.

Ancient pueblos built into the base of a natural canyon wall.

A motel dedicated to Southwestern nostalgia.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

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

One of the largest, oldest, darkest, quietest motel rooms in the world.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

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

Rippling sand dunes frozen in the Arizona rock.