The "Father of Arizona" tried to build a Zoroastrian fire temple on the hill where he's now buried.

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

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Once disputed as the largest sundial in the world.

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.

The former home of the army detachment that captured Geronimo.

An early 20th-century jail not far from the infamous Tombstone, Arizona.

One of the best-preserved ghost towns in Arizona speaks to the difficulties of establishing mining towns in the 19th century American West.

A 1930’s courtroom where John Dillinger and his gang went before a judge.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

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

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

The remains of a boarding school designed to forcibly assimilate Native American children.

More than a century old, this trading post resides in the Navajo Nation.

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

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

Two geoglyphs that are truly unique to North America.

This memorial includes fragments from one of the greatest tragedies in United States history.

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

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

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

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

The sprawling attraction boasts a collection of more than 150 historic wagons.