Ruins of an ancient abbey with a tower, under a clear blue sky, Byland Abbey, North Yorkshire, England, United Kingdom, Europe

Northern Lights (Aurora Borealis) and starry sky on the snowy landscape and the frozen trees, Levi, Sirkka, Kittila, Lapland region, Finland, Europe

Black sand dunes and Vestrahorn Mountains at dawn, Stokksnes beach, Hofn, Iceland, Polar Regions

Golden eagle (Aquila chrysaetos) landing on carcase, Finland, Europe

Stalls of Christmas Market, with Baroque Trinity Column in background, Hauptplatz, Linz, Oberosterreich (Upper Austria), Austria, Europe

Christmas Market (Christkindlmarkt) stalls and Town Hall, Kapellplatz, at twilight, Altotting, Bavaria (Bayern), Germany, Europe

A car negotiates a road through a wintry landscape in the Elan Valley area in Powys, Wales, United Kingdom, Europe

A Ferris wheel stands prominently against a clear blue sky, flanked by bare winter trees and stone buildings. The scene suggests a city setting, possibly during a holiday season.

Rocky coast at sunset in winter, Leas Foot Sand, Thurlestone, South Hams, Devon, England, United Kingdom, Europe

Beeston Castle and Peckforton Hills rise above a blanket of mist and fog covering the Cheshire plain on a frosty winters morning, Cheshire, England, United Kingdom, Europe

Stone barns in a winter landscape, Swaledale, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe

Polar bear (Ursus maritimus) and cub, Wapusk National Park, Churchill, Hudson Bay, Manitoba, Canada, North America

Sanatorio de San Francisco de Borja, Leprosy sanatorium (sanitarium), Fontilles, Marina Alta, Alicante province, Spain, Europe

Snowy park path lined with bare winter trees and parked cars under a partly cloudy sky. Footprints are visible in the snow in Harrogate, UK.

Northern Lights (Aurora Borealis) and starry sky on the frozen tree in the snowy woods, Levi, Sirkka, Kittila, Lapland region, Finland, Europe

Frosted leaves on the heathland, New Forest National Park, Hampshire, England, United Kingdom, Europe

Arlington Row Cotswold stone cottages on frosty morning, Bibury, Cotswolds, Gloucestershire, England, United Kingdom, Europe

Snow and ice on Porlock Common in winter, Exmoor National Park, Somerset, England, United Kingdom, Europe

Sheep graze on snow covered fields at dawn, Exmoor, Somerset, England, United Kingdom, Europe

Bison (Bison bison) bull covered with frost in the winter, Yellowstone National Park, Wyoming, United States of America, North America

Trees in fog at sunrise in winter, Devon, England, United Kingdom, Europe

A winter view of a winding road through a wooded valley in the Ardnamurchan Peninsula, the Scottish Highlands, Scotland, United Kingdom, Europe

Rathaus and Christmas market stalls at night in Rathausplatz, Vienna, Austria, Europe

Mythological statue in the snow covered Belvedere Garten, gardens of castle housing an art museum, Vienna, Austria, Europe

Ferris wheel of Prater Amusement Park, Vienna, Austria, Europe

Craig Cau photographed from the peak of Cadair Idris, Snowdonia, during a cloud inversion in winter, Wales, United Kingdom, Europe

Snow-covered neo-Romanesque Church of Saint Remigius dating from 1881, Cakovice, Prague, Czechia, Europe

Colourful rowing boats at Ullapool Harbour in heavy snow storm, Ullapool, Ross and Cromarty, Scottish Highlands, Scotland, United Kingdom, Europe

Old Sarum castle, Salisbury, Wiltshire, England, United Kingdom, Europe

Vicuna mother and young, Torres del Paine, Chile, South America

City skyline in winter, Stockholm, Sweden, Scandinavia, Europe

The High Street, Chipping Camden, the Cotswolds, Gloucestershire, England, UK

Sunrise, Antarctica, Polar Regions

Small working country library, near Dargaville, Northland, North Island, New Zealand, Pacific

Peekaboo Loop Trail switchbacks wind through hoodoos lit by early morning sun in winter, Bryce Canyon National Park, Utah, United States of America, North America

A lion statue ice sculpture at Longqing Gorge Ice sculpture festival, Beijing, China, Asia

Sunny Border Planting Guide sign, Dartington Hall gardens, Dartington estate, south Devon, England, United Kingdom, Europe

Billefjord, Svalbard, Spitzbergen, Arctic, Norway, Scandinavia, Europe

An Inuit Inukshuk stone statue, Whistler mountain resort, venue of the 2010 Winter Olympic Games, British Columbia, Canada, North America

Winter snow covered mountain hut in front of Sassolungo mountain, 3181m, Val Gardena, Dolomites, South Tirol, Trentino-Alto Adige, Italy, Europe

Courchevel 1850 ski resort in the Three Valleys (Les Trois Vallees), Savoie, French Alps, France, Europe

Rustic wooden benches along a peaceful forest trail with bare trees and a gravel path, Surrey, England, United Kingdom, Europe

A bright winter day in the Norfolk Broads showing Tall Mill near Upton, Norfolk, England, United Kingdom, Europe

Cho La Pass, Solu Khumbu Everest Region, Sagarmatha National Park, Himalayas, Nepal, Asia

Winter camping, Chamonix, Haute-Savoie, French Alps, France, Europe

Icelandic horses in snow covered field, Iceland, Polar Regions

Aurora borealis (Northern Lights) over Kirkjufell Mountain (Wizard's Hat) reflected in ocean, Iceland, Polar Regions

Frozen Lake Selvallavatn and snow covered lava field, Iceland, Polar Regions

Camp 1, climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Winter afternoon light at Great Staple Tor, Dartmoor National Park, Devon, England, United Kingdom, Europe

Snow covered pine trees in winter, High Tatras, Slovakia, Europe

Thatched cottages in the snow, Baslow, Derbyshire Dales, Derbyshire, England, United Kingdom, Europe

Golden eagle in flight over snow covered field, Finland, Europe

Sqwd dSnow, Sgwd Ddwli Waterfall, Brecon Beacons, Wales, United Kingdom, Europe

Baroque Michaelerkirche church dating from 1635 and buildings at confluence of Steyr and Enns rivers at sunset, Steyr, Oberosterreich (Upper Austria), Austria, Europe

New Zealand fur seals and erect-crested penguins, Bounty Island, Sub-Antarctic, Polar Regions

Winter landscape of deciduous trees and heather plants on heathland, Sutton Heath, Suffolk, England, United Kingdom, Europe

Reeds winter sunset, River Deben, Ramsholt, Suffolk, England, United Kingdom, Europe

Palacio de Cristal, Retiro Park, Madrid, Spain, Europe

Lochan n-ah Achlaise on Rannoch Moor in twilight, Highlands, Scotland, United Kingdom, Europe

Blue tit (Cyanistes caeruleus) feeding on hawthorn berry, Elmley Nature Reserve, Kent, England, United Kingdom, Europe

Full moon rising over snow covered winter landscape at twilight, tykky, Kuntivaara Fell, Finland, Europe

Full moon rising over snow covered winter landscape at twilight, tykky, Kuntivaara Fell, Finland, Europe

Full moon rising over snow covered winter landscape at twilight, tykky, Kuntivaara Fell, Finland, Europe

Winter in Dartmoor National Park, Devon, England, United Kingdom, Europe

Winter landscape, near Villingen-Schwenningen, Black Forest, Baden-Wurttemberg, Germany, Europe

Tree lined lane in snow, Exmoor, Somerset, England, United Kingdom, Europe

Alpine Ski resort, Tignes-le-Lac, Tignes, Savoie, Rhone-Alpes, French Alps, France, Europe

First light of day in winter on the stone causeway leading to St. Michaels Mount, Marazion, Cornwall, England, United Kingdom, Europe

Hoar frost over Stonethwaite village in Borrowdale, Lake District National Park, Cumbria, England, United Kingdom, Europe

Peyto Lake, Bow Summit, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America

Black Rock cottage and Buachaille Etive Mor mountain on Rannoch Moor in winter, Scottish Highlands, Scotland, United Kingdom, Europe

Composite sequence of a solar eclipse, United Kingdom, Europe

Winter view of Skogafoss waterfall, with cliffs covered in icicles and foregreound covered in snow, Skogar, South Iceland, Polar Regions

Weak winter Aurora Borealis (Northern Lights) over Jokulsarlon Glacial Lagoon, South Iceland, Polar Regions

Backlit frost-covered cottonwood trees in the winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Christmas market in Old Town Square and Church of Our Lady Before Tyn, Old Town, UNESCO World Heritage Site, Prague, Czech Republic, Europe

Dramatic granite outcrops at Honeybag Tor in Dartmoor National Park in winter, Devon, England, United Kingdom, Europe

Christmas Market stalls and St. Michael Catholic Church in Michaelerplatz, Vienna, Austria, Europe

Christmas Market stalls and St. Michael Catholic Church in Michaelerplatz, Vienna, Austria, Europe

Winter sunrise over The Great Lake, Castle Howard Estate, North Yorkshire, Yorkshire, England, United Kingdom, Europe

Rushup Edge in winter, Peak District, Derbyshire, England, United Kingdom, Europe

Frozen unnamed Lochan on Rannoch Moor looking to Meall a Bhuiridh and Clach Leathad, Rannoch Moor in winter, Argyll and Bute, Scottish Highlands, Scotland, United Kingdom, Europe

Frosty cold weather and posts of Neolithic henge site, Woodhenge, Wiltshire, England, United Kingdom, Europe

African skimmer (Rynchops flavirostris) at sunset, Chobe National Park, Botswana, Africa

Icebergs exhibiting fluting and honeycomb textures, Antarctica

Frost covered autumnal leaves on grass, Peterborough, Cambs, England

Tourist cabins at Point Victor, Eqip Glacier, Disko Bay, west coast, Greenland

Sunset over a warm river in winter, Yellowstone National Park, Wyoming, USA

Glacier at sunrise on summit of Mount Kibo, 5895m, Killimanjaro National Park, Tanzania, Africa

Moonrise at Tinitiqacaqacaq, East Greenland, Greenland

Alpbach, Tyrol, Austria

Orange clouds at dawn above Longs Peak, Rocky Mountain National Park, Colorado, United States of America, North America

Visitors to a temple after winter snow, Fragrant Hills Park, Western Hills, Beijing, China, Asia

A temple covered in snow after a winter snowfall, Fragrant Hills Park, Western Hills, Beijing, China, Asia

Farm community, the Pennines in winter, Cumbria, England, United Kingdom, Europe

The main staircase at the Winter Palace. St. Petersburg, Russia, Europe

An Inuit Inukshuk stone statue, Whistler mountain resort, venue of the 2010 Winter Olympic Games, British Columbia, Canada, North America

Jokulsarlon glacial lagoon, Breidamerkurjokull (Vatnajokull) glacier in the distance, Iceland, Polar Regions