A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

A lingering bit of Space Race nostalgia lies in the middle of the desert.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

Stock up on all your horror paraphernalia at this year-round Halloween emporium.

Over 100 lasers, including huge ones that look straight off a sci-fi set.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

A geological mystery on Camelback Mountain.

A towering bronze statue memorializes the founding father of postwar American conservatism.

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

The most alien-looking place on Earth.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A museum befitting the city responsible for supplying the majority of the world's LSD.

This massive metal sculpture in the shape of a folded paper airplane overlooks a Utah mountain.

Where unreadable addresses are read, 24 hours a day, seven days a week.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.