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Ancient wall of the Fort Silver Indian Ruins overlooking Silver Creek Canyon in Agua Fria National Monument of Arizona

The primitive Bloody Basin Road winding thru the Agua Fria National Monument north of Black Canyon City Arizona

Remnants of the Richinbar Mine within the Agua Fria National Monument, Black Canyon City, Arizona, USA

Open mine shaft at the Richinbar Mine within the Agua Fria National Monument, Black Canyon City, Arizona, USA

Patio Hundido, Sunken Courtyard, North Platform, Monte Alban Archaeological Site, Oaxaca State, Mexico

Petrified Waterfall at dusk, elevated view, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico

Petrified Waterfall at dusk, elevated view, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico

Petrified Waterfall at dusk, elevated view, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico

A snow squall storm building up over Humphrey's Peak. Viewed from O'Leary Peak in the Coconino National Forest of Arizona. Adjacent to Sunset Crater National Monument.

Dead trees from a past forest fire on the slope of O'Leary Peak in northern Arizona. Sunset Crater Volcano is in the background.

Dakou Waterfall, Lushan (Mount Lu), Jiujiang City, Jiangxi, China. Lushan is a UNESCO World Heritage site, it is one of China's most famous mountains known for its natural beauty.

Dragon Head Cliff, Lushan (Mount Lu), Jiujiang City, Jiangxi, China. Lushan is a UNESCO World Heritage site, it is one of China's most famous mountains known for its natural beauty.

Three tiered waterfall (SanDieQuan) in Lushan (Mount Lu), Jiujiang City, Jiangxi, China. Lushan is a UNESCO World Heritage site, it is one of China's most famous mountains known for its natural beauty.

Warm light envelops the majestic rock formation in Bryce Canyon National Park on a summer day, Utah, United States of America

Warm light envelops majestic rock formation in Bryce Canyon National Park during a summer day, Utah, United States of America

Golden evening light on the limestone cliffs, Dunraven Bay, Southerndown, Vale of Glamorgan, Wales, United Kingdom

Wadi Bani Awf, North Eastern slope of Jebel Akhdar, Western Hajar Mountains, Al-Dakhiliyah region, Sultanate of Oman, Arabian Peninsula

The grassland prairie on the summit of White Mesa in Coconino National Forest, Arizona, United States of America

Casner Canyon in Wet Beaver Creek Wilderness viewed from White Mesa summit, in Coconino National Forest, Arizona, United States of America

Man squatting beside extraordinary sandstone rock structure called Dancing Rocks, Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Entrance of the passage through the Siq channel at Jabal Ithlib area of Hegra (Madain Salih), UNESCO, AlUla, Medina Province, Saudi Arabia

View from second deck of fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

Former Mine Working Slate Cavern Tunnel at Dinorwig Quarry (Dinorwic Quarry), Eryri (Snowdonia National Park), North Wales, United Kingdom

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

People and continental drift of North American and Eurasian tectonic plates, Thingvellir National Park in winter, UNESCO, Western Region, Iceland

Standing Stones of Stenness, dating from around 3000BC, UNESCO, Orkney Islands, Scotland, United Kingdom

Basalt boulders and cliffs, Johnson Canyon between Bainbridge Steel and Stone Dams, Kaibab National Forest, Arizona, United States of America

view of Volcanoes and the Volcanic landscape with the Atlantic Ocean in the Timanfaya national park in Lanzarote in the Canary Islands, Spain

A cliff overhang shaped like the head of a Duck west of Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America