Machapuchare (Machhapuchhre) peak, Pokhara, Himalayas, Nepal

Lake Moraine, Rocky Mountains, Alberta, Canada

Hooker's sea lions (Neophoca hooker), Cannibal Bay, Catlins Coast, Otago, South Island, New Zealand, Pacific

Arctic fox (Alopex lagopus) running in snow, near Churchill, Manitoba, Canada, North America

Crowds of people and buses in the city, Kabul, Afghanistan

Cape Renard in the Lemaire Channel on the west coast of the Antarctic Peninsula, Antarctica

Ushuaia, the southernmost town in the Argentine, Argentina, South America

Iceberg lit by midnight sun, Antarctic Peninsula, Antarctica

Alpenglow at midnight, Antarctic Peninsula, Antarctica

Tabular iceberg, Antarctic Ocean, Antarctica

West coast, Antarctic Peninsula, Antarctica

Cuernos del Paine, 2600m, from Lago Pehoe, Torres de Paine National Park, Patagonia, Chile, South America

Mount Cook, Westland National Park, South Island, New Zealand, Pacific

Lochan na h-Achlaise, Rannoch Moor, Strathclyde, Highlands Region, Scotland, UK, Europe

Kya Jo Ri mountain from Machermo, Machermo, Himalayas, Nepal, Asia

View over Lauterbrunnen from Wengen, Bernese Oberland, Swiss Alps, Switzerland, Europe

Jokulsarlon glacial lagoon, Vatnajokull ice cap, south Iceland, Iceland, Polar Regions

Polar bear (Ursus maritimus) mother with twin cubs, Wapusk National Park, Churchill, Hudson Bay, Manitoba, Canada, North America

Mount Fitzroy, El Chalten, Patagonia, Argentina, South America

Perito Moreno glacier, Patagonia, Argentina, South America

Snow covered Mala Strana and Stare Mesto rooftops, Prague, Czech Republic, Europe

Red letterbox and telephone box in the snow, Highlands, Scotland, UK, Europe

Red deer stag in the Highlands in February, Highland Region, Scotland, UK, Europe

Briancon, Hautes Alpes, Provence, France, Europe

Ski resort, Arosa, Graubunden region, Swiss Alps, Switzerland, Europe

St. Moritz, Upper Engadine, Graubunden region, Swiss Alps, Switzerland, Europe

Close-up of 'jewels' of ice on a plant, Norway, Scandinavia, Europe

Blomstrand Glacier, Spitsbergen, Svalbard, Norway, Scandinavia, Europe

Nordmarka, Oslo, Norway, Scandinavia, Europe

Mt. Sassongher, Dolomites, Trentino-Alto Adige, Italy

Mt. McKinley, Denali National Park, Alaska, USA

Catherine's Park in February, Tsarske Seloe (Puskin), St. Petersburg, Russia

Koryaksky volcano seen beyond walkers on crater rim of Avacha volcano, Kamchatka, East Siberia, Russia

Ama Dablam peak, Mt Everest Region, Himalayas, Nepal

Hikers on rim of old crater, Avacha volcano, Kamchatka, East Siberia, Russia

Seven Sisters Falls, Geiranger Fjord, western fjordlands, Norway, Scandinavia, Europe

Winter scene beside the River Tay, Aberfeldy, Perthshire, Scotaland, UK

Inukshuk marker at Aupalaqtuq Point, Cape Dorset, Baffin Island, Canadian Arctic, Canada

Rhododendrons in bloom, Dhaula Dhar (Dhaola Dhar) Range of the Western Himalayas, Himachal Pradesh, India

Winter in Stowe, Vermont USA

Albert Memorial, London, UK, Europe

Driving a dogsled with a team of 8 Siberian huskies, Karelia, Finland, Europe

Fuji with Mt. Fuji in the background, Japan

Lake Pukaki and Mt Cook, Mount Cook National Park, Canterbury, South Island, New Zealand

Geo-thermal power plant, Svartsengi, Iceland

Blue Lagoon, Svartsengi, Iceland

Aspen trees during winter, Dixie National Forest, Utah, USA

Coyote (Canis latrans), weighing 30-40 lbs, less than half the weight of a wolf, Yellowstone National Park, Wyoming, USA

Cotswold farmhouse beside a road covered in snow in winter in England

Mount Everest from Kala Pata, Himalayas, Nepal, Asia

Ashness Bridge, Skiddaw in the background, Lake District National Park, Cumbria, England, UK

The Matterhorn mountain, Valais (Wallis), Swiss Alps, Switzerland, Europe

Zermatt and the Matterhorn mountain, Valais (Wallis), Swiss Alps, Switzerland, Europe

Glencoe (Glen Coe), Highlands Region, Scotland, UK, Europe

Interlaken, Jungfrau Region, Bernese Oberland, Swiss Alps, Switzerland, Europe

The Matterhorn mountain, Swiss Alps, Switzerland, Europe

Seefeld, Tyrol, Austria, Europe

Mount Fuji, Honshu, Japan, Asia

Cows in alpine meadow with Fiescherhorner and Eiger mountains beyond, Grindelwald, Bern (Berne), Bernese Oberland, Swiss Alps, Switzerland, Europe

View to Monte Rosa, Liskamm and the Gorner Glacier, Gomergrat, Zermatt, Valais (Wallis), Swiss Alps, Switzerland, Europe

View towards Liskamm and the Gorner Glacier, Gornergrat, Zermatt, Valais, Switzerland, Europe

Panoramic view of pink sky before sunrise over the Lower Theodul Glacier and the Matterhorn mountain, Zermatt, Valais (Wallis), Swiss Alps, Switzerland, Europe

Mont Blanc range near Chamonix, Haute-Savoie, French Alps, France, Europe

Mont Blanc range near Chamonix, French Alps, Haute-Savoie, France, Europe

Maroon Bells seen from stream rushing to feed Maroon Lake nearby, Aspen, Colorado, Rocky Mountains, USA, North America

Mount Kilimanjaro, Kenya, East Africa, Africa

Ice formation in the water of Mandalenefjord, West Spitsbergen, Norway, Scandinavia, Europe

Trappers hut, Spitsbergen, Svalbard, Norway, Scandinavia, Europe

Husky dog sled team, Spitsbergen, Norway, Europe

Winter sunset in the forest near Oslo, Norway, Scandinavia, Europe

Riffelberg and Matterhorn, Valais, Switzerland, Europe

Athabasca Glacier, Columbia Icefield, Jasper National Park, Rocky Mountains, Alberta, Canada

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

The Matterhorn mountain (4478m), Valais (Wallis), Swiss Alps, Switzerland, Europe

Aircraft on the ground in a blizzard, Antarctica

Snow storm, blizzard, Churchill, Hudson Bay, Manitoba, Canada, North America

Winter scene, Yoyogi koen (park), Tokyo, Japan

Mt. Fuji and Yamanaka ko (lake), Yamanashi, Japan

Mt. Fuji and Yamanaka ko (lake), Yamanashi, Japan

Hikers en route to Mt. Hakuba Glacier, Northern Alps, Japan

Hermitage, Winter Palace, St. Petersburg, Russia

Emperor penguin (Aptenodytes forsteri) and chicks, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguin chick (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chicks, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri), Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Emperor penguins (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Krill swarm cooked pink by fumarole activity on the volcanic island of Deception Island, Antarctica, Polar Regions

Tourists on adventure cruise, Antarctic Peninsula, Antarctica, Polar Regions

Tourists on adventure cruise, Antarctic Peninsula, Antarctica, Polar Regions

Grave site with memorials to whalers and scientists, Laurie Island, South Orkney Islands, Antarctica, Polar Regions

The Karakorum (Karakoram) Highway on the Chinese side, with River Giz, Xinjiang, China, Asia

Bahrain area, Swat, North West Frontier Province, Pakistan, Asia

skiers, Oukaimeden ski resort, Morocco, North Africa

huts, Hintertux glacier, Mayrhofen ski resort, Zillertal Valley, Austrian Tyrol, Austria

Matterhorn from Riffelsee at dawn, Zermatt, Swiss Alps, Switzerland, Europe

Matterhorn from Riffelsee at dawn, Zermatt, Swiss Alps, Switzerland, Europe

City in winter, Stockholm, Sweden, Scandinavia, Europe

Yak train approaches Tarboche, prayer flag pole in Lha Chu canyon, on the kora round sacred mountain, Mount Kailas (Kailash), Tibet, China, Asia

Buddhist prayer stones at sky burial site above Tarboche in Lhu Chu canyon, beneath sacred mountain, on kora route, Mount Kailas (Kailash), Tibet, China, Asia

Hiker on Tongariro Crossing trek by Blue Lake under winter ice and snow, Tongariro National Park, UNESCO World Heritage Site, Taupo, South Auckland, North Island, New Zealand, Pacific