Natural Bridges National Monument, view from Horsecollar Ruin Overlook Trail, Utah, United States of America, North America

Sunset over the Atlantic from the rocky shores of Booby's Bay, Cornwall, England, United Kingdom, Europe

Colourful sunrise sky above Haytor, Dartmoor National Park, Devon, England, United Kingdom, Europe

Canyon de Chelly National Monument, View from the Whitehouse Overlook, Arizona, United States of America

Chilean Flamingo (Phoenicopterus chilensis), Laguna Chaxa, Salar de Atacama, Atacama Desert, Chile, South America

Reflections in pools among the sandstone, Zion National Park, Utah, United States of America, North America

Spider Rock from Spider Rock Overlook, Canyon de Chelly National Monument, Arizona, United States of America, North America

Pohutu Geyser, Rotorua, North Island, New Zealand, Pacific

The Lady Knox Geyser, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

Riverside Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Purple wild flowers, Capitol Reef National Park, Utah, United States of America, North America

Cactus arrow on Isla de los Pescadores, Volcan Tunupa and the salt flats, Salar de Uyuni, Southwest Highlands, Bolivia, South America

Falls on the Kicking Horse River, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Limestone and shale rock formations on the shore at Kilve, Somerset, England, United Kingdom, Europe

The Old Man of Storr basalt pillars on the Isle of Skye, Inner Hebrides, Scotland, United Kingdom, Europe

Snow covered granite rocks at Great Mis Tor in winter, Dartmoor National Park, Devon, England, United Kingdom, Europe

Tan sandstone at first light, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Pink clouds at dawn over sandstone formations covered with a dusting of snow, Zion National Park, Utah, United States of America, North America

Multi coloured mountains, Humahuaca, province of Jujuy, Argentina, South America

Bedruthan Steps, Newquay, Cornwall, England, United Kingdom, Europe

Volcano Tavurvur, Rabaul, East New Britain, Papua New Guinea, Pacific

Dramatic coastal scenery at Bedruthan Steps on the North Cornish coast, Cornwall, England, United Kingdom, Europe

Cliffs of Espanola Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

An evening view of the Giant's Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Sharyn Canyon National Park and the Valley of Castles, Tien Shan Mountains, Kazakhstan, Central Asia, Asia

Rock formations and roads, Arizona, United States of America, North America

Waves swirl around the rocks of Booby's Bay near Trevose Head, Cornwall, England, United Kingdom, Europe

The Cliffs of Moher and Branaunmore sea stack, Burren region in County Clare, Munster, Republic of Ireland, Europe

Hoodoo Trail near Fairmont Hotsprings in autumn, British Columbia, Canada, North America

Salt flats at Belo sur Mer, Morondava district, Madagascar, Africa

Pebble abstract on a beach, Wales, United Kingdom, Europe

Caldera Landscape of Teide National Park, Tenerife, Spain

Giant rock on the sandy beach of Cathedral Cove, Coromandel, North Island, New Zealand, Pacific

Torres del Paine, east faces of the granite towers above, Torres del Paine National Park, Patagonia, Chile, South America

Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Sigiriya (Lion Rock), UNESCO World Heritage Site, Sri Lanka, Asia

Anse Source d'Argent beach, La Digue, Seychelles, Indian Ocean, Africa

Svartsengi (Blue Lagoon) Geothermal Power Station at sunset, Grindavik, Reykjanes Peninsula, Iceland, Polar Regions

Mudpots at Namaskard geothermal area (Namafjall-Hverarond), near Lake Myvatn and Reykjahlid, North Iceland, Iceland, Polar Regions

Limestone pinnacles in Shilin, Stone Forest, at Lunan, Yunnan, China, Asia

Cold lava after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Steaming fumarole on the Gorely volcano, Kamchatka, Russia, Eurasia

The beehive-like mounds in the Purnululu National Park, UNESCO World Heritage Site, Bungle Bungle Mountain Range, Western Australia, Australia, Pacific

Dry river before the the beehive-like mounds in the Purnululu National Park, UNESCO World Heritage Site, Bungle Bungle mountain range, Western Australia, Australia, Pacific

Echidna Chasm, Purnululu National Park, UNESCO World Heritage Site, Bungle Bungle Mountain Range, Western Australia, Australia, Pacific

Mount Lidgbird and Mount Gower, Lord Howe Island, UNESCO World Heritage Site, Australia, Tasman Sea, Pacific

Dramatic early light on the Trotternish ridge as viewed from the Quiraing, Trotternish, Isle of Skye, Scotland, United Kingdom, Europe

Los Cuernos del Paine, Torres del Paine National Park (Parque Nacional Torres del Paine), Patagonia, Chile, South America

Orange clouds at sunrise above sandstone formations, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Sandstone swirl under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Sandstone formations under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Antelope Canyon, Page, Arizona, United States of America, North America

Volcanic peaks against deep blue sky, Jandia peninsula, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Crater rim on Mount Naka active volcano, Mount Aso, Kyushu, Japan, Asia

Myrdalsjokull glacier, Iceland, Polar Regions

Hoodoo or goblin, Goblin Valley State Park, Utah, United States of America, North America

Salt lake, Formentera, Balearic Islands, Spain, Mediterranean, Europe

Hvtserkur, a dragon shaped rock in North West Iceland at sunset, around midnight in summer, Iceland, Polar Regions

Life beneath a volcano of Gunung Agung, which last erupted in 1963, Bali, Indonesia, Southeast Asia, Asia

Kasha-Katuwe Tent Rock National Monument, 14th and 15th century dwellings, New Mexico, United States of America, North America

Tourists gather to watch Strokker geyser (geysir), an erupting spring at Haukadalur, Iceland, Polar Regions

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

Lone Ponderosa pine atop a sandstone formation at first light, Zion National Park, Utah, United States of America, North America

Tufa spires and tower formations of calcium carbonate at sunset, Mono Lake, South Tufa Reserve, Mono Basin Scenic Area, Lee Vining, Inyo National Forest Scenic Area, California, United States of America, North America

Champagne Pool, Waiotapu, Rotorua, North Island, New Zealand, Pacific

Devil's Bath, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

Sandstone formations, Capitol Reef National Park, Utah, United States of America, North America

Small mushroom formations in the badlands, Bisti Wilderness, New Mexico, United States of America, North America

Isla del Pescado (Fish Island) on Salar de Uyuni (Salt Flats of Uyuni), Potosi Department, Bolivia, South America

Cacti on Isla de los Pescadores and the salt flats of Salar de Uyuni, Southwest Highlands, Bolivia, South America

Cacti on Isla de los Pescadores and the salt flats of Salar de Uyuni, Southwest Highlands, Bolivia, South America

Red rock formations in the Canon Del Inca, Tupiza Chichas Range, Andes, Southwestern Bolivia, South America

Thin-bedded Oligocene Cobden limestone, Punakaiki, Pancake Rocks, Greymouth, South Island, New Zealand, Pacific

Snow covered granite outcrop in winter at Sharpitor in Dartmoor National Park, Devon, England, United Kingdom, Europe

Weathered rock pools, Andringitra National Park, Ambalavao, central area, Madagascar, Africa

Symphony of Stones, Basalt columns formation along Garni gorge, Kotayk Province, Armenia, Caucasus, Asia

Waterways and cracked mud in the salt marshes of the island's west, near Le Griveau, Ars en Re, Ile de Re, Charente-Maritime, France, Europe

An evening view of the Giant's Causeway, UNESCO World Heritage Site, County Antrim, Ulster, Northern Ireland, United Kingdom, Europe

Hoodoos, Ah-Shi-Sle-Pah Wilderness Study Area, New Mexico, United States of America, North America

Hoodoo at dusk, Ah-Shi-Sle-Pah Wilderness Study Area, New Mexico, United States of America, North America

Inspiration Point, Bryce National Park, Utah, United States of America, North America

Clay Cliffs, Omarama, Canterbury, South Island, New Zealand, Pacific

Caldera Landscape of Teide National Park, Tenerife, Spain

Smoking Sikidang Crater, Dieng Plateau, Java, Indonesia, Southeast Asia, Asia

Huge sharp pinnacles of the Omarama clay cliffs, Otago, South Island, New Zealand, Pacific

Limestone outcrops on Castle Hill, Canterbury, South Island, New Zealand, Pacific

Pillar arch in yellow sandstone, Valley of Fire State Park, Nevada, United States of America, North America

Man standing in an ice cave, Fox Glacier, Westland Tai Poutini National Park, South Island, New Zealand, Pacific

Woman standing in an ice cave, Fox Glacier, Westland Tai Poutini National Park, South Island, New Zealand, Pacific

Grand Geyser erupts and steam blocks the sun, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Eruption of Castle Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Gunnuhver Hot Spring, Reykjanes Peninsula, Iceland, Polar Regions

Tourist looking at smoking fumaroles on Mutnovsky volcano, Kamchatka, Russia, Eurasia

Tourists standing at a cold lava stream after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Large monolith in the Avacha bay near Petropavlovsk-Kamchatsky, Kamchatka, Russia, Eurasia

Dry river and the beehive-like mounds in the Purnululu National Park, UNESCO World Heritage Site, Bungle Bungle mountain range, Western Australia, Australia, Pacific

Example of pahoehoe lava on Fernandina Island, Galapagos Islands, Ecuador, South America

Dramatic light at Glen Sligachan, Isle of Skye, Scotland, United Kingdom, Europe

Evening light on the Brandberg Mountains, Damaraland, Namibia, Africa