Saguaro cactus (Carnegiea gigantea), photographed under a waning moon in the Sweetwater Preserve, Tucson, Arizona, United States of America, North America

photography color image travel destinations travel vertical outdoors sunset dusk no people arizona usa north america saguaro cactus cactus clear sky mountain sweetwater preserve tucson copy space desert arid climate shadow landscape travel destination tourist destination tourist destinations sundown evening twilight shadows outdoor outside nobody no one no person museum museums landscapes deserts hot heat arid dry