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

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

This remote desert watering hole has a connection to a curious chapter of American history.

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

Legend says train robbers stashed their gold within the depths of this unusual cave.

Visitors to this public park will also find the ruins of an old western fort.

During World War II this was the site of an "honor camp" used as a prison for draft dodgers, Native American conscientious objectors, and Japanese-Americans—including a man who brought his case against the camp to the Supreme Court.

An off-the-beaten path cave with an underground lake.

Petroglyphs, bird watching, and a 100-year-old Ranch in one location.

For those going through a life transition, a place to leave behind a piece of your former self.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

This small memorial is dedicated to the Perryville State Prison firefighters who perished fighting the Dude Fire in 1990.

The largest and most well-preserved petroglyph site in the Verde Valley.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

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

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

An artificial crater field that trained astronauts for lunar exploration.

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

Although now a decaying ruin, this stone cabin's history includes several notable figures.

This geothermal hot spring hides beneath a slowly growing mineral dome.

A frozen oasis lies beneath the scorching New Mexico desert.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.