Christmas tree in Castle Square, Old Town, Warsaw, Poland (© Panther Media GmbH/Alamy)

North Gate of Angkor Thom, Angkor Archaeological Park, Cambodia (© Amazing Travel Lifestyle/Shutterstock)

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)

Beach with bungalow and coconut palm trees at Palolem in Goa, India. (© Pikoso.kz/Shutterstock)

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)

India gate war memorial designed by Sir Edwin Lutyens in New Delhi, India. (© Amit kg/Shutterstock)

Last rays of sun on a group of dunes, Sahara, Algeria (© AWL Images/DanitaDelimont.com)

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)

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

Ljubljana, Slovenia (© kasto80/Getty images)

Red Fort Delhi historic monument at sunrise with flying pigeons (© Roop Dey/Alamy Stock Photo)

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

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

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

Carved stories of King Ashoka on gate of Sanchi Stupa, Madhya Pradesh, India (© Dinodia Photos/Alamy Stock Photo)

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)

Red fox sleeping in the snow, Abruzzo, Italy (© marco vancini/500px/Getty Images)