The biggest solar telescope in the world helps reveal the secrets of our sun.

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

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

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

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

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

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

Miniature art that tells an enormous story.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

The Magical World of George Phar Legler.

A mysterious spirit totem at the edge of Navajo lands.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

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

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

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.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.