Town Hall Square, Tartu, Estonia (© Westend61/Getty Images)

Milky Way over Athabasca Glacier in Jasper National Park, Canada (© Alan Dyer/Getty Images)

Gwalior Fort, Madhya Pradesh, India (© Dmitry Rukhlenko-Photos of India/Alamy)

Sandstone rock formations, Vermilion Cliffs National Monument, Arizona (© Yva Momatiuk and John Eastcott/Minden Pictures)

A mother cheetah and her cubs in the Masai Mara National Reserve, Kenya (© Scott Davis/Tandem Stills + Motion)

Neuschwanstein and Hohenschwangau Castles, Bavarian Alps, Germany (© Harald Nachtmann/Getty Images)

Dardagna waterfalls, Bologna, Italy (© Alberto Ghizzi Panizza/Minden)

A foggy morning at Verdon Gorge in the Alpes-de-Haute-Provence of France (© Hemis/Alamy)

La Rocque Harbour, St. Clement, Island of Jersey (© Reinhard Schmid/Huber/eStock Photo)

Guanacos in Los Glaciares National Park, Patagonia, Argentina (© Yva Momatiuk and John Eastcott/Minden Pictures)

Llyn Padarn lake, Snowdonia, Wales (© Joe Daniel Price/Getty Images)

Winter in Huangshan Mountains, China (© Hung Chung Chih/Shutterstock)

Red poinsettias (© Yarygin/Getty Images)

Traditional fishing cabins, Svolvaer, Lofoten Islands, Norway (© Roberto Moiola/Sysaworld/Getty Images)

Boreal owl, Saskatchewan, Canada (© Nick Saunders/Minden Pictures)

SantaPark in Rovaniemi, Lapland, Finland (© lukutin77/Getty Images)

Guild houses of Grand-Place, Brussels, Belgium (© Richard Taylor/Sime/eStock Photo)

Bohemian waxwings perched on a branch, Canada (© Jim Cumming/Shutterstock)

Capitol Reef National Park, Utah (© Jeff Clay/Tandem Stills + Motion)

Cachoeira da Fumacinha, Chapada Diamantina, Bahia, Brazil (© Rtzstudio/Shutterstock)

Village in Val Gardena at Christmas, Dolomites, Italy (© Ingus Kruklitis/Getty Images)

Ljubljana, Slovenia (© kasto80/Getty images)

Castlerigg Stone Circle near Keswick, Lake District National Park, Cumbria, United Kingdom (© John Finney Photography/Getty Images)

Chinstrap penguins, South Sandwich Islands, South Atlantic Ocean (© Jan Vermeer/Minden Pictures)

Reindeer running in snow, Alaska, USA (© Michael Quinton/Minden Pictures)

Winter sunrise in Dedham, Colchester, England (© George W Johnson/Getty Images)

Kirkjufell, Snæfellsnes peninsula, Iceland (© Ratnakorn Piyasirisorost/Getty Images)

Humpback whale, Disko Bay, Greenland (© Paul Souders/DanitaDelimont.com)

Oud-West neighborhood, Amsterdam, Netherlands (© George Pachantouris/Getty Images)

Daiichi Tadami River Bridge, Fukushima prefecture, Japan (© DoctorEgg/Getty Images)

Fireworks over Phra Nakhon Khiri, Phetchaburi, Thailand (© noomcpk/Shutterstock)