Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This naturally-sourced hot spring is now home to a clothing-optional resort.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A technicolor place of worship for Elevationists.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.

Previously a hot spring, this park remains a site of unique history, wildlife, and geology.

An excursion train traverses a picturesque red-rock canyon along the Verde River.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.

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

The first steel dam in the world and the only one still functional in the United States.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

A stone pillar commemorates the surrender of the extraordinary Apache leader.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This ancient trail has claimed the lives of over 2,000 people.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.