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An old windmill marking the boundary of the Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), surfacing with spout in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae) flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult North American porcupine (Erethizon dorsatum), running in Glacier Bay National Park, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Abiqua Falls in autumn, Scotts Mills, Marion county, Oregon, United States of America, North America

Multnomah Falls in autumn, Cascade Locks, Multnomah county, Oregon, United States of America, North America

Mountt Hood reflected in Trillium Lake at sunset, Government Camp, Clackamas county, Oregon, United States of America, North America

Abiqua Falls in autumn, Scotts Mills, Marion county, Oregon, United States of America, North America

Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Millions of butterflies covering trees, Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Millions of butterflies covering trees, Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Close up of Monarch butterflies (Danaus plexippus), Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Millions of butterflies covering trees, Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Millions of butterflies covering trees, Monarch Butterfly Biosphere Reserve, UNESCO World Heritage Site, El Rosario, Michoacan, Mexico, North America

Aerial of Sian Ka'an Biosphere Reserve, UNESCO World Heritage Site, Quintana Roo, Mexico, North America

Aerial of Sian Ka'an Biosphere Reserve, UNESCO World Heritage Site, Quintana Roo, Mexico, North America

A dry waterfall sandstone ledge on a trail to Steamboat Rock, Coconino National Forest, Sedona, Arizona, United States of America, North America

Nevada Fall waterfall in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

The Merced River at Valley View in spring, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Maligne Lake boathouse in Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Alberta, Canada, North America

West panorama view from a lava field on the side of Humphrey's Peak near Flagstaff in the Coconino National Forest, Arizona, United States of America, North America

Ian Brown stand up paddle surfs a whitewater wave on the Potomac River near Potomac, Maryland, United States of America, North America

Ian Brown stand up paddle surfs challenging whitewater below Great Falls of the Potomac River, border of Maryland and Virginia, United States of America, North America

Jennifer Jordan and dog Jack cross country ski the Berma Road near Potomac, Maryland, United States of America, North America

Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America

Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America

Balanced rock that resembles a toadstool, petrified wood scattered around the formation, Petrified Forest National Park, Arizona, United States of America, North America

A giant petrified log on a sandstone pedestal on the edge of the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Flat top hoodoo on the edge of a cliff along the Billings Gap Trail on Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America

The lower Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

The cone geyser called Old Faithful erupting, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, 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

The upper Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

The cone geyser called Old Faithful erupting, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

The lower Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Large storm approaching Blue Mesa in Petrified Forest National Park, viewed from the Red Basin Trail, near Holbrook, Arizona, United States of America, North America

View of Mount Rainier, a stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park, Washington State, United States of America, North America

Mountain creek with waterfalls near Maligne Canyon, Athabasca River Basin, Jasper National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Castle Mountain and the Bow River after an early winter snowfall, Banff National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Lake Louise and the Fairmont Chateau Hotel in winter, Banff National Park, UNESCO World Heritage Site, Alberta, Canadian Rockies, Canada, North America

Cattle Tank viewed from Woodchute Mountain Trail, located in Prescott National Forest with Prescott in the background, Arizona, United States of America, North America

Snow and hoar frost in a winter forest, Boreal Forest, Elk Island National Park, Alberta, Canada, North America

Snow and hoar frost in a winter forest, Boreal Forest, Elk Island National Park, Alberta, Canada, North America

Mount Fryatt and the Athabasca River, Jasper National Park, UNESCO World Heritage Site, Alberta, Canada, North America

A calming mountain stream flows through dense summer forest, Blue Ridge Mountains, Appalachian Mountains, North Carolina, United States of America, North America

A calming mountain stream flows through dense summer forest, Blue Ridge Mountains, Appalachian Mountains, North Carolina, United States of America, North America

A calming mountain stream flows through dense summer forest, Blue Ridge Mountains, Appalachian Mountains, North Carolina, United States of America, North America

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

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

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

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

Kayaker at sunrise at Lake Moraine, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

The town of Banff with Cascade Mountain in the background, Alberta, Rocky Mountains, Canada, North America

Huge deer, 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

View from below the north cliffs of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Tomohon City, sited close to four volcanoes, two of them active, known for its flower festival and extreme' market, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia

Roaring Creek waterfalls, Appalachian Trail, Blue Ridge Mountains, North Carolina, United States of America, North America

Suspension bridge through a warm illuminated tropical forest, the Rainforest biome of Mount Taranaki, North Island, New Zealand, Pacific

A sign along the main road pointing the way to the Long Logs Trail, and Agate House, Petrified Forest National Park, Arizona, United States of America, North America

A circular walkway for the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America

A hoodoo called the Zuni Warrior on the edge of a cliff near Hamilili Point, Hamilili is Zuni meaning petrified wood, Petrified Forest National Park, Arizona, United States of America, North America

Vine maple (Acer circinatum) in the fall, Mount Hood National Forest, Oregon, United States of America, North America

Mushroom shaped sandstone spire on an eroded ridge west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Adult American black bear (Ursus americanus) near Mendenhall Glacier, Southeast Alaska, United States of America, North America

An adult great blue heron (Ardea herodias) perched beside a river in Misty Fjords National Monument, United States of America, North America

Birch trunk, Saguenay National Park, Baie Sainte-Marguerite, Province of Quebec, Canada, North America

Mule Deer Doe (Odocoileus hemionus) in the summer forest, Kananaskis, Alberta, Canada, North America

Tall hoodoo towers in the valley below Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

A hoodoo spire shaped like a Horse Head, in the valley below Blue Mesa of Petrified Forest National Park, Arizona, United States of America, North America

A valley below the east cliffs of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Cathedral Rocks by Merced River, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, Central California, California, United States of America, North America

Scenic view of hoodoos and rock formations, Rim Trail near Sunrise Point, Bryce Canyon National Park, Utah, United States of America, North America

Grand Canyon at sunset, Yaki Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Slabs of brown sandstone on the summit of Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Hoodoo filled cliffs on the north side of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

A cliff cave below Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

A rock table sculpted by the wind on Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Waterfall pouring down a rocky cliff, with blurred motion, resulting from a slow shutter speed; at Welcombe Mouth, Hartland, north Devon, England, United Kingdom, Europe