832-377425 - Swirling northern polar lights, rare overhead display, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-367254 - The Odessa seaport is blocked by ice, frozen Black Sea, a rare phenomenon, last time it occured in 1977, Odessa, Ukraine, Eastern Europe

832-377424 - Swirling northern polar lights, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-377423 - Swirling northern polar lights, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-370487 - Green Northern Lights, Aurora Borealis, over the mountains of Longyearbyen lit by the crescent moon, Spitsbergen, Svalbard, Norway, Europe

832-367256 - Icy cafe tables and benches on the beach of the frozen Black Sea, a rare phenomenon, last time it occured in 1977, Odessa, Ukraine, Eastern Europe

832-368260 - Northern Lights or aurora borealis above Lake Langisjor, Highland, Iceland, Europe

832-377403 - Swirling green northern polar lights (Aurora borealis), near Whitehorse, Yukon Territory, Canada

832-377421 - Swirling northern polar lights, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-370492 - Green and red polar lights, northern lights, aurora borealis above a snow-covered landscape, landscape being illuminated by lights from civilisation, Spitsbergen, Svalbard, Norway, Europe

832-377415 - Swirling Northern lights, Polar Aurorae, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-377414 - Swirling Northern lights, Polar Aurorae, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-377422 - Illuminated, lit wall tent, cabin with swirling northern polar lights, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-370496 - Green Northern Lights, Aurora Borealis, above two small huts in a starry sky, Adventdalen, Todalen, Longyearbyen, Spitsbergen, Svalbard, Norway, Europe

832-377409 - Swirling Northern lights, Polar aurora or Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-377408 - Swirling Northern lights, Polar aurora or Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-377407 - Northern lights, Polar aurora or Aurora Borealis, green, over frozen Yukon River, Dawson City facing Moose Hide, Yukon Territory, Canada

832-375012 - Icy barbed wire, frozen Black Sea, a rare phenomenon, occured in 1977 for the last time, Odessa, Ukraine, Eastern Europe

832-374163 - Couple, woman and man, sitting in a wooden chair, watching swirling Northern lights, Polar Aurorae, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-367255 - People walking on icy pier, frozen Black Sea, a rare phenomenon, last time it occured in 1977, Odessa, Ukraine, Eastern Europe

832-374162 - Young couple, woman and men, sitting in a wooden chair, watching northern polar lights, pointing, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-370501 - Panoramic view, green Northern Lights, Aurora Borealis, with the moon above the Joekulsarlon glacial lagoon and the Breidamerkurjoekull, Breidamerkurjoekull and Vatnajoekull glaciers, Vatnajoekull National Park, Iceland, Europe

832-377417 - Swirling Northern lights, Polar Aurorae, Aurora Borealis, green, near Whitehorse, Yukon Territory, Canada

832-374167 - Illuminated wall tent, cabin, green northern polar lights, Aurora borealis, spruce trees, near Whitehorse, Yukon Territory, Canada

832-370493 - Green and red polar lights, northern lights, aurora borealis above a snow-covered landscape, landscape being illuminated by lights from civilisation, Spitsbergen, Svalbard, Norway, Europe

832-377399 - Illuminated expedition tent and traditional wooden snow shoes, Northern Lights, Polar Lights, Aurora Borealis, green, purple, blue, near Whitehorse, Yukon Territory, Canada

832-377419 - Spiral, swirling green northern polar lights, Aurora borealis, near Whitehorse, Yukon Territory, Canada

832-368318 - Sinter terraces, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

832-367252 - People on icy pier, frozen Black Sea, a rare phenomenon, Odessa, Ukraine, Eastern Europe

831-1433 - Frozen waterfall in Rumbak Valley, Hemis National Park, Ladakh, India, Asia

827-494 - Sunset, Es Vedra and Vedranell, Ibiza, Balearic Islands, Spain, Mediterranean, Europe

809-6245 - Clouds, France, Europe

809-6228 - Somme landscape, France, Europe

627-1292 - Sunrise on the Mediterranean Sea, Collioure, Languedoc-Roussillon, France, Europe

627-1290 - Sunrise on the Mediterranean Sea, Collioure, Languedoc-Roussillon, France, Europe

627-1291 - Sunrise on the Mediterranean Sea, Collioure, Languedoc-Roussillon, France, Europe

627-1294 - Sunrise on the Mediterranean Sea, Collioure, Languedoc-Roussillon, France, Europe

627-1293 - Sunrise on the Mediterranean Sea, Collioure, Languedoc-Roussillon, France, Europe

832-346087 - Svartifoss Falls, Skaftafell National Park, Iceland, Atlantic Ocean

832-334346 - Sugar Maple leaves (Acer saccharum), autumn colours in Eastern Canada during Indian summer, La Mauricie National Park, Quebec, Canada

832-334347 - Sugar Maple leaves (Acer saccharum), autumn colours in Eastern Canada during Indian summer, La Mauricie National Park, Quebec, Canada

832-336889 - Roque de los Organos, organ pipes rock, view from boat, La Gomera, Canary Islands, Spain

832-336890 - Roque de los Organos, organ pipes rock, view from boat, La Gomera, Canary Islands, Spain

832-334348 - Sugar Maple leaves (Acer saccharum), autumn colours in Eastern Canada during Indian summer, La Mauricie National Park, Quebec, Canada

805-716 - Gorichen peak, highest peak in Arunachal Pradesh at 22500 feet, capped with fresh snow, visible from the road at Bomdila, Arunachal Pradesh, India, Asia

832-326205 - Jasper riverbed, Quebrada de Jaspe, Bolivar, Gran Sabana, Venezuela, South America

832-326210 - Tourists visiting Salto El Sapo Falls, Canaima, Gran Sabana, Venezuela, South America

832-322397 - Godafoss Waterfall, Iceland, Atlantic Ocean

832-322393 - Dettifoss Waterfall, Iceland, Atlantic Ocean

832-322399 - Godafoss Waterfall, Iceland, Atlantic Ocean

832-322395 - Selfoss Waterfall, Iceland, Atlantic Ocean

832-322400 - Rainbow over Skogafoss Waterfall, Iceland, Atlantic Ocean

1125-150 - Grand Canyon star gazing, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

829-2079 - Sunset over Athens, the capital of Greece, Europe

1112-1699 - Aurora borealis (Northern Lights) dance above the Lindblad Expeditions ship National Geographic Explorer in Hudson Strait, Nunavut, Canada, North America

1112-1698 - Aurora borealis (Northern Lights) dance above the Lindblad Expeditions ship National Geographic Explorer in Hudson Strait, Nunavut, Canada, North America

1112-1697 - Aurora borealis (Northern Lights) dance above the Lindblad Expeditions ship National Geographic Explorer in Hudson Strait, Nunavut, Canada, North America

1112-1700 - Aurora borealis (Northern Lights) dance above the Lindblad Expeditions ship National Geographic Explorer in Hudson Strait, Nunavut, Canada, North America

1112-1692 - Glacier detail in Icy Arm, Baffin Island, Nunavut, Canada, North America

1112-1690 - Glacier detail in Icy Arm, Baffin Island, Nunavut, Canada, North America

832-309709 - Oexarafoss Waterfalls, Oexara Fluss, Thingvellier, Hvalfjoerour, Iceland

832-309731 - Mountain panorama set against a glowing night sky

832-309705 - Aldeyjarfoss Waterfalls, Skjalfandafljot-Fluss, Sprengisandur highland road, Iceland

832-309729 - Glowing night sky

832-309735 - Poplars silhouetted against the setting sun and a glowing night sky

832-309737 - Sunset in a glowing night sky

832-309707 - Svartifoss, "Black Waterfall, " with basalt columns, Skaftafell National Park, southeast Iceland, Iceland

832-309706 - Aldeyjarfoss Waterfalls, Skjalfandafljot-Fluss, Sprengisandur highland road, Iceland

832-309708 - Svartifoss, "Black Waterfall, " with basalt columns, Skaftafell National Park, southeast Iceland, Iceland

832-309702 - Gullfoss Waterfalls, Hvita-Fluss, Haukadalur, southern Iceland, Iceland

832-309727 - Pink clouds in an evening sky

832-309704 - Skogarfoss Waterfalls, Eyjafjallajoekull, southern Iceland, Iceland

832-309728 - Pink clouds in an evening sky

832-309710 - Athabasca Falls, Athabasca River, Jasper National Park, Alberta, Canada

832-307646 - Cirrus clouds in a blue sky

832-304464 - Row of waterfalls, Snaefellsness Peninsula, Iceland, Atlantic Ocean

832-304462 - Row of waterfalls, Snaefellsness Peninsula, Iceland, Atlantic Ocean

816-5397 - Dry river and beehive-like mounds in the Purnululu National Park, UNESCO World Heritage Site, Bungle Bungle mountain range, Western Australia, Australia, Pacific

832-289939 - Northern lights (Aurora borealis), Canada

832-289938 - Northern lights (Aurora borealis), Canada

465-3141 - Stormchasers and TV channel nine reporting truck at scene of supercell thunderstorm near Sterling, Oklahoma, United States of America, North America

832-358613 - Tent with snowshoes, Northern Lights (Aurora borealis) overhead, Yukon Territory, Canada, North America

832-358540 - Northern Lights (Aurora Borealis), trees silhouetted in green light, Yukon Territory, Canada

832-358553 - Swirling green northern lights over Takhini Valley with tree silhouettes, Aurora Borealis, Yukon Territory, Canada

832-358541 - Northern Lights (Aurora Borealis), explosion of green light, Yukon Territory, Canada

832-358552 - Swirling green northern lights over Takhini Valley with tree silhouettes, Aurora Borealis, Yukon Territory, Canada

832-358538 - Sundog appearing in ice fog, rainbow colours, ice crystals, Yukon Territory, Canada

802-266 - Rhossili Beach, Gower Peninsula, Wales, United Kingdom, Europe

829-1886 - Early morning view of clouds over the west coast of the French island of Reunion in the Indian Ocean, Africa

829-1903 - View of the stars from the Cederberg mountains in South Africa, Africa

829-1873 - Night view of stars and the moon above the Cirque de Cilaos caldera on the French island of Reunion in the Indian Ocean, Africa

829-1894 - The Milky Way as seen from the French island of Reunion in the Indian Ocean, Africa

829-1902 - Night view of Steenbras Dam and the Milky Way in the Western Cape Province of South Africa, Africa

829-1881 - The sun rising over the Cirque de Mafate caldera on the French island of Reunion in the Indian Ocean, Africa

829-1888 - Night-time view of a mountain peak poking above the clouds on the French island of Reunion in the Indian Ocean, Africa

829-1882 - The sun rising over the Cirque de Mafate caldera on the French island of Reunion in the Indian Ocean, Africa

829-1890 - Night-time view across the mist-shrouded Cirque de Mafate caldera on the French island of Reunion in the Indian Ocean, Africa

829-1874 - Stars over the mountain peaks encircling the Cirque de Cilaos caldera on the French island of Reunion in the Indian Ocean, Africa

829-1904 - Milky Way seen from the Cederberg Mountains in South Africa, Africa

829-1889 - Night-time view of a mountain peak poking above the clouds on the French island of Reunion in the Indian Ocean, Africa