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Volcanic boulders on Navajo sandstone, Grand Staircase-Escalante National Monument, Utah, United States of America, North America
Mount Sneffels with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
A small stream running through Charles Wood, Dartmoor National Park, Devon, England, United Kingdom, Europe
The southern Alps in the Parc National du Mercantour near Allos, Alpes-de-Haute-Provence, Provence, France, Europe
Court of the Patriarchs, Abraham Peak, Isaac Peak, Mount Moroni and Jacob Peak, Zion National Park, Utah, United States of America, North America
Checkerboard Mesa, formed of Navajo sandstone, Zion National Park, Utah, United States of America, North America
Autumn trees by Ullswater near Glenridding, Lake District National Park, Cumbria, England, United Kingdom, Europe
Snake River at the Schwabacher Landing, Grand Teton National Park, Wyoming, United States of America, North America
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Palette Spring, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mound Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Ephedra spring, West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Petrohue Falls and Osorno Volcano, Vicente Perez Rosales National Park, Chilean Lake District, Chile, South America
Cape ground squirrel (Xerus inauris), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa
Black-winged stilt (Himantopus himantopus), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa
Pearl-spotted owlet (pearl-spotted owl) (Glaucidium perlatum), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa
Castlerigg stone circle in the Lake District National Park, Cumbria, England, United Kingdom, Europe
Castlerigg stone circle in the Lake District National Park, Cumbria, England, United Kingdom, Europe
Hoodoos, on the Queens Garden Trail, Bryce Canyon National Park, Utah, United States of America, North America
Cloud over the San Juan Mountains, San Juan National Forest, Colorado, United States of America, North America
The Olgas (Kata Tjuta), Uluru-Kata Tjuta National Park, UNESCO World Heritage Site, Northern Territory, Australia, Pacific
First light at Clear Lake, San Juan National Forest, Colorado, United States of America, North America
Cascades in Minnie Gulch, San Juan National Forest, Colorado, United States of America, North America
Flaming Gorge National Recreation Area, Utah, United States of America, North America
Fort Shirley, Cabrits National Park, Portsmouth, Dominica, West Indies, Caribbean, Central America
Grizzly bear (Ursus arctos horribilis), Yellowstone National Park, Wyoming, United States of America, North America
Bladder campion (Silene vulgaris), Waterton Lakes National Park, Alberta, Canada, North America
Uinta ground squirrel (Urocitellus armatus), Yellowstone National Park, Wyoming, United States of America, North America
Rare mountain zebra in the early morning in the Karoo National Park, South Africa, Africa
Bison (Bison bison) bull, Yellowstone National Park, Wyoming, United States of America, North America
Waterfall in an Alpine basin, San Juan National Forest, Colorado, United States of America, North America
Pine tree on the exposed granite rock at Sentinel Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Seasonal ponds on Tuolumne Meadows in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
The Three Brothers reflected in the River Merced, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Tranquil Tenaya Lake alongside the Tioga Pass, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
An isolated farmhouse in Dartmoor National Park, Devon, England, United Kingdom, Europe
Elk, Cervus canadensis, wapiti, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bull elk (Cervus canadensis) demonstrating the flehmen response, Jasper National Park, Alberta, Canada, North America
Two bull elk (Cervus canadensis) sparring during the rut, Jasper National Park, Alberta, Canada, North America
Guadalupe Peak and El Capitan at dusk, Guadalupe Mountains National Park, Texas, United States of America, North America
Sandhill crane (Grus canadensis), Yellowstone National Park, Wyoming, United States of America, North America
Grizzly Bear (Ursus arctos horribilis) walking, Yellowstone National Park, Wyoming, United States of America, North America
Fog among the mountains and evergreens, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Clouds reflected in a pond, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Sgwd Gwladus waterfall on the Afon Pyrddin river, Brecon Beacons National Park, Wales, United Kingdom, Europe
Pyramid Mountain in the Canadian Rockies reflected in Pyramid Lake, Jasper National Park, UNESCO World Heritage Site, Alberta, Canada, North America
Granite tor on Meldon Hill at sunrise, Chagford, Dartmoor National Park, Devon, England, United Kingdom, Europe
Marjorie Glacier in Glacier Bay National Park, Alaska, United States of America, North America
Ranomafana National Park, central area, Madagascar, Africa
Aktau Mountains, Altyn-Emel National Park, Almaty region, Kazakhstan, Central Asia, Asia
Aktau Mountains, Altyn-Emel National Park, Almaty region, Kazakhstan, Central Asia, Asia
Colourful sunset skies above the snow dusted mountains of Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Crowfoot mountain reflection in the mirror still waters of Bow Lake, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America
Mount Vihren, 2945m, Pirin National Park, UNESCO World Heritage Site, Bansko, Bulgaria, Europe
Jetties on Ullswater in the Lake District National Park, Cumbria, England, United Kingdom, Europe
The crater with active lava lake of Mount Nyiragongo, Virunga National Park, UNESCO World Heritage Site, Democratic Republic of the Congo, Africa
Leopard (Panthera pardus), Ruaha National Park, Tanzania, East Africa, Africa
Sunshine in a broadleaf woodland carpeted with common bluebells, Dartmoor National Park, Devon, England, United Kingdom, Europe
El Capitan reflected in a flood pool, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Two lions (Panthera leo) greeting each other, Kruger National Park, South Africa, Africa
Sunset over the Son River in the Phong Nha Ke Bang National Park, Quang Binh, Vietnam, Indochina, Southeast Asia, Asia
Prehistoric rock carvings in the Lope National Park, UNESCO World Heritage Site, Gabon, Africa
Tourists on a horse tour in Vinales National Park, UNESCO World Heritage Site, Vinales Valley, Vinales, Cuba, West Indies, Caribbean, Central America
Latvian National Museum of Art, Riga, Latvia, Baltic States, Europe
Twilight on the slopes below Saddle Tor with mist in the Teign Valley, Dartmoor National Park, Bovey Tracey, Devon, England, United Kingdom, Europe
The Towers of the Virgin, Zion National Park, Utah, USA
White Mountain National Forest, New Hampshire, New England, USA, North America
Jagged sandstone cliffs above the Virgin River, Zion National Park, Utah, USA
Packhorse Bridge, Allerford, Exmoor National Park, Somerset, England, UK, Europe
The Grand Chateau, one of the country's best known hotels, Whakapapa village, below Mount Ruapeho, Tongariro National Park, North Island, New Zealand, Pacific
The Merlion, Singapore's national symbol, Singapore, South East Asia
Bison (Bison bison), Yellowstone National Park, Wyoming, United States of America, North America
Reflection of the Teton range, Bradley Lake, Grand Teton National Park, Wyoming, United States of America, North America
Bunkers Ranges, seen from Stokes Hill, Flinders Ranges National Park, South Australia, Australia, Pacific
Horses, Hacienda Gauachipelin,near Rincon de la Vieja National Park, Gaunacaste, Costa Rica
Tortuguero National Park, Costa Rica
Beautiful rock formation, Pancake Rocks, Paparoa National Park, West Coast, South Island, New Zealand, Pacific
Aerial of the rugged mountains in Fiordland National Park, UNESCO World Heritage Site, South Island, New Zealand, Pacific
Aerial of the rugged mountains in Fiordland National Park, UNESCO World Heritage Site, South Island, New Zealand, Pacific
Guanacos, Torres del Paine National Park, Patagonia, Chile, South America
Interior of The National Library of Finland, Helsinki, Finland, Europe
Beauty Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Ice encrusted dead trees against clear skies, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Skalafellsjokull, Vatnajokull National Park, Iceland, Polar Regions
Chinese national flags in the CBD business district, Beijing, China, Asia
View to west across Little Langdale Tarn, Little Langdale, Lake District National Park, Cumbria, England, United Kingdom (U.K.), Europe
African elephants (Loxodonta africana), Queen Elizabeth National Park, Uganda, East Africa, Africa
Early morning, Bryce Canyon National Park, Utah, United States of America, North America
Views of Banff and the Bow Valley surrounded by Rocky Mountains from the top of Sulphur Mountain, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America
Murchison Falls (Kabarega Falls) on the Nile, Murchison Falls National Park, Uganda, East Africa, Africa
Puku in the mist at sunrise, Busanga Plains, Kafue National Park, Zambia, Africa
Oklahoma City National Memorial and Museum, Oklahoma City, Oklahoma, United States of America, North America
Vermilion Lakes, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America
Vermilion Lakes, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America
Lake Louise, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America
Weeping Wall, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America
The National Forum of Music, Wroclaw, Poland, Europe
National Assembly and Tsar Osvoboditel statue, Sofia, Bulgaria, Europe
Frozen Little Langdale Tarn and snow-covered fells, near Ambleside, Lake District National Park, Cumbria, England, United Kingdom, Europe