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

A natural history wunderkammer in the middle of the desert.

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

A mysterious spirit totem at the edge of Navajo lands.

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

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

Most-visited and most-photographed slot canyon in the American Southwest.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

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

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Don't blink or you'll miss it.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

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

The world's largest military aircraft cemetery.

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

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.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

A spiritual vortex among the red rocks in Sedona.

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

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

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.

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