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

This church on a Tohono O'Odham reservation has stood since 1797.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

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

This once-booming Gold Rush town is now home to a herd of feral donkeys.

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

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

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

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

The cinder cone volcano with a less than complimentary name.

A museum and tribute to a brave profession.

The unusual burial monument of Arizona's first governor.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

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

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

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.