A saloon and inn that served the Wild West's most iconic figures—and is still haunted by some of them today.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

Crumbling remnants of what was once a booming town full of silver.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

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

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

The remote resting place of a notorious Wild West outlaw whose death is shrouded in mystery.

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

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

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

An artificial crater field that trained astronauts for lunar exploration.

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

A reproduction of earth's many biomes.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.