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

A museum and tribute to a brave profession.

America's only nuclear missile silo open to the public.

The world's largest military aircraft cemetery.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

The Magical World of George Phar Legler.

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

Most-visited and most-photographed slot canyon in the American Southwest.

Dramatic river bend surrounds a natural red-rocked pedestal.

Rippling sand dunes frozen in the Arizona rock.

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