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

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

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

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

Once disputed as the largest sundial in the world.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

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

A museum and tribute to a brave profession.

A geological mystery on Camelback Mountain.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.