Sleeping Arctic fox (© Menno Schaefer/Getty Images)

Mount Goodsir and surroundings in Yoho National Park, B.C. (© Peter Essick/Cavan Images)

Cove of Spires in Kenai Fjords National Park, Alaska (© Sekar B/Shutterstock)

Christmas Market in Main Square of Braşov, Romania (© Alpineguide/Alamy)

African elephants in Addo Elephant National Park in South Africa (© Robert Harding/Alamy)

The village of Benasque, Huesca, Spain (© Miscelleneoustock/Alamy)

Elevated path in Plitvice Lakes National Park, Croatia (© Alessandro Laporta/Offset by Shutterstock)

Christmas lights at the Butchart Gardens in British Columbia (© James Wheeler/Getty Images)

Rocca Calascio in Abruzzo, Italy (© Francesco Russo/eStock Photo)

View of the Parliament Hill in winter, Ottawa (© Thomas Brissiaud/Shutterstock)

Queen of the Andes plants with the Cordillera Blanca massif in the background, Peru (© Cyril Ruoso/Minden Pictures)

Poinsettia leaf close-up (© Charles Floyd/Alamy)

Gornergrat railway station and the Matterhorn in Zermatt, Switzerland (© coolbiere photograph/Getty Images)

Pine grosbeak (© Peter Lilja/Getty Images)

Bastei Bridge above the Elbe river in Saxon Switzerland National Park, Germany (© Reinhard Schmid/eStock Photo)

Ludwig van Beethoven sculptures and monument at the Münsterplatz, Bonn, Germany (© dpa/Alamy Live News)

The English National Ballet's 2016 production of 'The Nutcracker' at the London Coliseum in London, England (© Robbie Jack/Corbis via Getty Images)

Tre Cime di Lavaredo as seen from the Lavaredo fork, Sexten Dolomites, Italy (© AWL Images/Danita Delimont)

Early morning frost on trees in Mount Siguniang National Park in Sichuan Province, China (© Robert Harding World Imagery/Offset by Shutterstock)

Mountain goat kid in western Montana (© Donald M. Jones/Minden Pictures)

Castlerigg Stone Circle near Keswick, Lake District, Cumbria, United Kingdom (© Alan Copson/plainpicture)

Holiday lights on Cape Neddick Light in York, Maine (© Walter Bibikow/Alamy)

Banded pipefish near Moalboal, Philippines (© Jenna Szerlag/Alamy)

Northern lights and wild reindeer on the tundra in Norway (© Anton Petrus/Getty Images)

Santa's giant sleigh and mailbox, Ilulissat, Greenland (© Walter Bibikow/Jon Arnold Images Ltd/Alamy)

Saint-Denis Street and Chateau Frontenac in Quebec City (© Yves Marcoux/First Light/Alamy Stock Photo)

Nabana no Sato garden at night in Kuwana, Japan (© Zoonar GmbH/Alamy)

Snow boarder in Whistler, B.C. (© John Crux/Alamy Stock Photo)

Old town of Lucerne, Switzerland (© Xantana/Getty Images)

Winter in Bryce Canyon National Park, Utah (© Don Paulson/Danita Delimont)

Fireworks during a New Year's Eve celebration in Zaragoza, Spain (© Martina Badini/Shutterstock)