Legend says train robbers stashed their gold within the depths of this unusual cave.

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

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

A cabinet of curious mathematical models and old calculators.

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

A Tucson museum and performance space full of found-object movable sculptures.

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

The fading, forgotten remains of a once bright and booming factory.

The site of a popular piano lounge owned by a former world champion boxer is now a place to rent a truck.

The unusual burial monument of Arizona's first governor.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

The first permanent memorial to a unique secret weapon of World War II.

A mysterious "wedding cake" castle in the middle of the urban desert.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A self-built castle made by a mysterious man.

Memorial to a beloved puppeteer as well as all street performers.

This unassuming stone commemorates a condiment factory gone up in smoke.

Museum dedicated to awful artwork.

This is the house that spite built.

A tiny monument to the classic American candy.

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.