This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

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

This collection of neon icons is preserving Arizona's history, one sign at a time.

A Wild West jailhouse that slid down the mountainside.

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

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

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

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

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

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

A geological mystery on Camelback Mountain.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A stealthy Apache hideaway that became the haunting site of a mass grave.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

A fleet of automotive automatons sleep in this otherwise unremarkable urban garage.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The ghostly remains of an accidental sea.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A trash dump made beautiful by nature's power.

A toxic ghost town sitting atop a massive coal fire.