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

A natural history wunderkammer in the middle of the desert.

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

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

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

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

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

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

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

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

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

An artificial crater field that trained astronauts for lunar exploration.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

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

Collection of vintage trailers double as hotel rooms.

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

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

Ancient pueblos built into the base of a natural canyon wall.

Limestone caves with spectacular showcase chambers.

An urban laboratory.

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

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.