Once a year, at exactly 11:11 a.m., this monument comes to life.

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

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

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

A Tucson museum and performance space full of found-object movable sculptures.

A mysterious "wedding cake" castle in the middle of the urban desert.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

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 rose bush has literally outgrown the pioneer museum it was planted behind.

Collection of vintage trailers double as hotel rooms.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

The Magical World of George Phar Legler.

A stealthy Apache hideaway that became the haunting site of a mass grave.

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

A self-built castle made by a mysterious man.

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

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