This collection of vintage signs reflects the long and colorful history of this Arizona town.

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

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

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

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

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

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

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

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

The cinder cone volcano with a less than complimentary name.

Remains of a Greek freighter trapped off of Rocky Point in 1961.

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

An artificial crater field that trained astronauts for lunar exploration.

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

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

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

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

The eroded core of an ancient volcano is now accessible by a short hike.

This Native American settlement dates back to the Pueblo II period.

Windswept and remote, this island was once the home of a rare mammoth and today is home to a rare tree.

A popular winter vacation destination for migrating monarch butterflies.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

The highest point in Washington state is a volcano covered in glaciers.