Tulip fields in Noordoostpolder, Netherlands (© Siebe Swart/plainpicture)(Bing New Zealand)

Rocky shoreline in Saguenay-St. Lawrence Marine Park, Quebec, Canada (© Yves Marcoux/plainpicture)(Bing New Zealand)

Sway bridge at the Palace of the Lost City, North West Province, South Africa (© Heinrich van den Berg/Alamy)(Bing New Zealand)

The Koknese Castle ruins in Koknese, Latvia (© Andrejs Zemdega/Getty Images)(Bing New Zealand)

Aztec headdress detail (© Marcia Chambers/Alamy)(Bing New Zealand)

Pass over the Atlas Mountains above the Dadès Gorges, Morocco (© Art Wolfe/Mint Images)(Bing New Zealand)

Cambridge University Botanic Garden, Cambridge, England (© Harpur Garden Library/Corbis)(Bing New Zealand)

Poplar trees in Po Valley, Italy (© Eddy Galeotti/Alamy)(Bing New Zealand)

Snow goose migration at the Saint-François River, Quebec, Canada (© David Doubilet/Getty Images)(Bing New Zealand)

Mother wolf and pup (© Ronald Wittek/age fotostock)(Bing New Zealand)

Tatuamunha River estuary, Brazil (© Luciano Candisani/Minden Pictures)(Bing New Zealand)

Marina Bay skyline in Singapore (© Martin Puddy/Getty Images)(Bing New Zealand)

Boats moored in the Vieux-Port, Cannes, France (© Alan Copson/age fotostock)(Bing New Zealand)

Tidal flats, Katmai National Park, Alaska (© plainpicture/Cultura)(Bing New Zealand)

Black-tailed prairie dogs in Wind Cave National Park, South Dakota (© James Hager/age fotostock)(Bing New Zealand)

Jerusalem River Waterfalls, Tasmania, Australia (© Ted Mead/Getty Images)(Bing New Zealand)

Mount Saint Helens, Washington (© Diane Cook and Len Jenshel/Getty Images)(Bing New Zealand)

Archie, a Columbian mammoth specimen at the University of Nebraska State Museum in Lincoln, Nebraska (© Joel Sartore/Getty Images)(Bing New Zealand)

Flower hat jelly in the Monterey Bay Aquarium, Monterey, California (© Frans Lanting/plainpicture)(Bing New Zealand)

The Colorado River and Marble Canyon, Grand Canyon National Park, Arizona (© Gavin Heffernan/Shutterstock)(Bing New Zealand)

Crater Lake, Oregon (© Roshin Lal Ramesan)(Bing New Zealand)

Red-eared slider turtle (© Ammit Jack/Alamy)(Bing New Zealand)

Sand dune, Sossusvlei, Namibia (© Erik Joosten/Minden Pictures)(Bing New Zealand)

Horned grebe carrying its chick (© Winfried Wisniewski/Minden Pictures)(Bing New Zealand)

A fog-shrouded Golden Gate Bridge in San Francisco, California (© Della Huff/Alamy)(Bing New Zealand)

Cherry orchards bloom in Mason County, Michigan (© Jeffrey Wickett/SuperStock)(Bing New Zealand)

Sơn Đoòng Cave in Phong Nha-Kẻ Bàng National Park, Vietnam (© Getty Images)(Bing New Zealand)

Herd of impalas in Masai Mara National Reserve, Kenya (© Jonathan & Angela Scott/Getty Images)(Bing New Zealand)

A living bridge in the East Khasi Hills district of Meghalaya, India (© Timothy Allen/Getty Images)(Bing New Zealand)