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

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

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

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

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

A replica of the flagpole that gave a frontier town its name.

A rare wayfinding portmanteau of “Street” and “Avenue.”

A towering bronze statue memorializes the founding father of postwar American conservatism.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

Make a wish at what might be America's only Catholic shrine to a sinner.

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

Inside this store, a mysterious statue draws visitors from the world over.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Stairs often replace streets on the steep slopes of this old mining town.

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

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

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

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

This sanguine boulevard was named after a deadly cowboy bar fight.

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