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The road leading to Kaibab Lake in the Kaibab National Forest near Williams, Arizona, United States of America, North America

The northeast side of Keyhole Mesa in the First Forest of Petrified Forest National Park, Arizona, United States of America, North America

Steamboat Geyser, the worlds tallest active geyser, steaming in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Fall colors in Mount Rainier National Park, Washington State, United States of America, North America

An adult American red squirrel (Tamiasciurus hudsonicus) in the trees in Denali National Park, Alaska, United States of America, North America

Stone outcrops forming rock formations, Vale da Lua, Chapada dos Veadeiros National Park, UNESCO World Heritage Site, Goias, Brazil, South America

Trilha dos Santos e Corredeiras, Chapada dos Veadeiros National Park, UNESCO World Heritage Site, Goias, Brazil, South America

Trilha dos Santos e Corredeiras, Chapada dos Veadeiros National Park, UNESCO World Heritage Site, Goias, Brazil, South America

Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.

Beech trees in autumn colour beside the River Barle at Tarr Steps, near Dulverton, Exmoor National Park, Somerset, England, United Kingdom, Europe

Natural Bridge Lower Falls, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Lake Louise, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Athabasca Falls at sunrise, Glacier Parkway, Jasper National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

The River Erne flowing fast through autumnal ancient forest, Dartmoor National Park, near Ivybridge, Devon, England, United Kingdom, Europe

Trees in autumn colours with Coniston Old Man behind, Coniston, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Grand Prismatic Spring and bacterial mats, Midway Geyser Basin, Yellowstone National Park, Teton County, Wyoming, United States of America, North America

Male Andean cock-of-the-rock (Rupicola peruviana), Manu National Park cloud forest, Peruvian national bird, Peru, South America

Waterfall on Rio Bellos river in the limestone Anisclo Canyon, Ordesa National Park, Anisclo, Pyrenees, Aragon, Spain, Europe

Bastei Rocks at sunrise, Elbsandstein Mountains, Saxony Switzerland National Park, Saxony, Germany, Europe

Owl Creek Pass palisade with fall color, Uncompahgre National Forest, Colorado, United States of America, North America

An adult bark gecko (Hemidacdylus leschenaultii), on a tree in Wilpattu National Park, Sri Lanka, Asia

Male broad-billed hummingbird (Cynanthus latirostris) in flight, Madera Canyon, Coronado National Forest, Arizona, United States of America, North America

Yellow and orange aspens reflected in Sliver Lake in the fall, Wasatch-Cache National Forest, Utah, United States of America, North America

View over Yosemite National Park with Half Dome, UNESCO World Heritage Site, California, United States of America, North America

View over Yosemite National Park with Half Dome, UNESCO World Heritage Site, California, United States of America, North America

Hiking in Rothiemurchus Forest at Loch an Eilein, Aviemore, Cairngorms National Park, Scotland, United Kingdom, Europe

Rudyerd Bay, float plane and spectacular clouds, beautiful day, Misty Fjords National Monument, Summer, Ketchikan, Alaska, United States of America, North America

Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Snow-capped mountains reflected in the calm waters of Phelps Lake, Grand Teton National Park, Wyoming, United States of America, North America

Sunrise at Two Jack Lake with Mount Rundle on the horizon, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Autumn aspens reflected in a lake, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America

A mother brown bear (Ursus arctos) with her cubs on the beach in Lake Clark National Park and Preserve, Alaska, United States of America, North America

An ancient packhorse bridge at Marsh Bridge, near Dulverton, Exmoor National Park, Somerset, England, United Kingdom, Europe

Winter forest covered with snow under the green Northern Lights (Aurora Borealis), Pallas-Yllastunturi National Park, Muonio, Lapland, Finland, Europe

Tawhei Falls Waterfall, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific

Natural stone bridge of petrified wood called Keystone Bridge, located on Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Large pieces of petrified wood on the west side of Red Basin in Petrified Forest National Park Arizona, United States of America, North America

Tunnel View, Yosemite Valley with El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Woman enjoying the view along the Theodore Roosevelt National Park North Unit, North Dakota, United States of America, North America

A hoodoo overlooking Jasper Forest in Petrified Forest National Park Arizona that resembles a Dinosaur Head.

Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.

Commercial dory runs the Deubendorff Rapid, just past river mile 132, Grand Canyon National Park, Arizona, United States of America, North America

Cheerful mother with son snowshoeing in the frozen forest, Oulanka National Park, Ruka Kuusamo, Lapland, Finland

Canoe on Emerald Lake, Yoho National Park, UNESCO World Heritage Site, British Columbia, Canada, North America

Cascade Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Mountain view from Sulphur Mountain top, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Aerial of Pyramid Lake, Jasper National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Maligne Canyon, Jasper National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Taggerty River, tree ferns and myrtle beech trees in the temperate rainforest, Yarra Ranges National Park, Victoria, Australia, Pacific

Morning light over snow covered trees, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Andean motmot (Momotus aequatorialis), Manu National Park, Peruvian Amazon Cloud Forest, Peru, South America

Young yellowbelly marmot (Marmota flaviventris) grooming, Uncompahgre National Forest, Colorado, United States of America, North America

Ice sculptures in the snowy Arctic landscape, Riisitunturi National Park, Posio, Lapland, Finland, Europe

Orange and yellow aspen leaves, White River National Forest, Colorado, United States of America, North America

Blick vom Gohrisch, 440m, to Koenigstein Fortress, Elbsandstein Mountains, Saxony Switzerland National Park, Saxony, Germany, Europe

A view of a moorland river surrounded by autumnal ancient forest, the East Lyn River, at Watersmeet, Exmoor National Park, Devon, England, United Kingdom, Europe

Yellow aspen in the fall, Uncompahgre National Forest, Colorado, United States of America, North America

Pictographs, Alabama Hills, Inyo National Forest, California, United States of America, North America

Lost Lake at dawn in the fall, Grand Mesa-Uncompahgre-Gunnison National Forest, Colorado, United States of America, North America

Panorama view of the Petrified Forest National Park from the First Forest Trail, Arizona, United States of America, North America

A petrified log called the Agate Bridge in Petrified Forest National Park, Arizona, United States of America, North America

The remains of an old road in the Jasper Forest Petrified Forest National Park, built in the 1930s but then abandoned in the 1940s, Arizona, United States of America, North America

Aerial view of sunrise over Mount Rainier National Park, Washington State, United States of America, North America

View over the mountains, Rock Engravings National Park of Naquane, UNESCO World Heritage Site, Valcamonica, Italy, Europe

Caldera de Taburiente National Park, UNESCO Biosphere Site, La Palma, Canary Islands, Spain, Atlantic, Europe

Adult crested serpent eagle (Spilornis cheela) perched on a tree in Wilpattu National Park, Sri Lanka, Asia

View of sunset and dry stone wall overlooking Peak Forest, Peak District National Park, Derbyshire, England, United Kingdom, Europe

Orange aspens in the fall among evergreens covered with snow at a lake, Grand Mesa National Forest, Colorado, United States of America, North America

Hoatzin (Opisthocomus hoazin), Lake Sandoval, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America