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The view to the southeast from Point Sublime after sunset, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Saguaro organ pipe cactus and prickly pear cactus, Saguaro National Monument, Tucson, Arizona, USA, North America

Aerial view of the South Rim, Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, USA, North America

Rock formation known as Swirls on Colorado Plateau, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Pillar of stone in Thin Lizy Canyon, a slot canyon, Arizona, United States of America (U.S.A.), North America

West Rim, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Woman stretching, Monument Valley Navajo Tribal Park, Arizona Utah border, United States of America, North America

Returning on horseback, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Pallid bat (Antrozous pallidus) in flight, near Portal, Arizona, United States of America, North America

Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America

River Otter (Lutra canadensis) in captivity, resting and sucking on its tail, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Northern Mojave Rattlesnake (Crotalus scutulatus scutulatus) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Layered sandstone column under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Petrified Forest National Park, Blue Mesa, Blue Mesa Trail, sedimentary layers of bluish bentonite clay

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

Flower of the prickly pear cactus (Opuntia), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America

Cliff dwelling of Southern Sinagua farmers, built in the early 1100s CE (Common Era), a five storey, 20 room structure, Montezuma Castle National Monument, Arizona, United States of America, North America

Cliff dwelling of Southern Sinagua farmers, built in the early 1100s CE (Common Era), a five storey, 20 room structure, Montezuma Castle National Monument, Arizona, United States of America, North America

Lomaki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

A lone photographer stands perched on a rock silhouetted against the dawn orange sky at Yaki Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sun rays extend from a cloud perched on the horizon putting Vishnu temple into silhouette, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Western diamond-back rattlesnake (Western diamondback Rattlesnake) (Crotalus atrox) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Captive river otter (Lutra canadensis) swimming, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Harris's hawk (Parabuteo unicinctus) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Barn owl (Tyto alba) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Canyon de Chelly National Monument, Mummy Cave Ruins, Arizona, United States of America, North America

Canyon de Chelly National Monument, Blue Bull Cave, pictographs, Arizona, United States of America, North America

Canyon de Chelly National Monument, Blue Bull Cave, pictographs, Arizona, United States of America, North America

Cape Royal Viewpoint at sunset, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone Rock formations, Lower Antelope Canyon, Page, Arizona, United States of America, North America

Lone horse rider at John Fords Point, Merrick Butte, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

West Mitten Butte, East Mitten Butte and Merrick Butte, The Mittens at sunset, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

Wotans Throne, Cape Royal Viewpoint at sunset, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

West Mitten Butte, East Mitten Butte and Merrick Butte, The Mittens, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

Wupatki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Kiva in foreground, Wupatki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Wukoki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Colorado River below, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Southwestern Myotis (Myotis auriculus) in flight about to take a drink, Chiricahuas, Coronado National Forest, Arizona, United States of America, North America

Female broad-tailed hummingbird (Selasphorus platycercus) feeding at a Walkingstick Cholla (Cane Cholla) (Opuntia spinosior), Arizona, United States of America, North America

Female broad-tailed hummingbird (Selasphorus platycercus) feeding at a Walkingstick Cholla (Cane Cholla) (Opuntia spinosior), Arizona, United States of America, North America

Southwestern Myotis (Myotis auriculus) in flight after taking a drink, Chiricahuas, Coronado National Forest, Arizona, United States of America, North America

White-nosed coati (Nasua narica) in a tree, Chiricahuas, Coronado National Forest, Arizona, United States of America, North America

Sandstone brain rock and red and white swirls at dawn, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Brain Rock at dusk, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Juniper and sandstone cones under the stars, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Historic Route 66 Neon Motel sign showing a vacancy, Seligman, Arizona, United States of America, North America

Historic Route 66 neon sign glowing at sunset, Seligman, Arizona, United States of America, North America

A panorama of the historic cabin of Henry Wickenburg, who founded the Arizona town with the same name in the late 1800s, Wickenburg, Arizona, United States of America, North America

An outside view of the historic cabin of Henry Wickenburg, founder of Vulture City and the town of Wickenburg, Arizona, United States of America, North America

The Assay Office in the ghost town of Vulture City, near Wickenburg, Arizona, United States of America, North America

Man rock climbing at The Pit (Le Petit Verdon) in Sandy's Canyon, Flagstaff, Arizona, United States of America, North America

Totem Pole and Sand Springs, Monument Valley Tribal Park, Arizona, United States of America, North America

Casa Grande (Great House) Ruins National Monument, home to the Sonora Desert people, founded near 400 AD, abandoned about 1450 AD, Coolidge, Arizona, United States of America, North America

View of Hoover Dam from the new Mike O'Callaghan-Pat Tillman Memorial Bridge, Arizona, United States of America, North America

Tourist admiring the view from the South Rim, near Yavapai Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Cactus plants inside Jardin de Cactus designed by Cesar Manrique, including Echinocactus grusonii from Mexico, Guatiza, Lanzarote, Canary Islands, Spain, Atlantic, Europe

Canyon de Chelly National Monument, Mummy Cave Ruins, Arizona, United States of America, North America

Grand Canyon viewed from South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Man rock climbing at The Pit (Le Petit Verdon) in Sandy's Canyon, Flagstaff, Arizona, United States of America, North America

Gammage Auditorium, architect Frank Lloyd Wright, Arizona State University, Tempe, Greater Phoenix Area, Arizona, United States of America, North America

Agate Bridge, a petrified log spanning ravine, Petrified Forest National Park, Arizona, United States of America, North America

Sedimentary layers of bluish bentonite clay, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America

Coyote Buttes North, fragil sandstone formed by wind and water, Paria Wilderness Area, Arizona, United States of America, North America

Upper Antelope Canyon (Tse' bighanilini), LeChee Chapter, Navajo Nation, Arizona, United States of America, North America