Walrus on Frozen Strait, Hudson Bay, Nunavut, Canada (© Paul Souders/Corbis)(Bing United States)
Piscataqua River, Portsmouth, New Hampshire (© Denis Tangney Jr./Getty Images)(Bing United States)
Mendenhall Glacier near Juneau, Alaska (© John Hyde/age fotostock)(Bing United States)
Everglades National Park, Florida (© Angelo Cavalli/Aurora Photos)(Bing United States)
Harbin International Ice and Snow Sculpture Festival in Harbin, China (© Yang Wang)(Bing United States)
Lagoon near San Jose del Cabo, Baja California Sur, Mexico (© Frans Lanting/SuperStock)(Bing United States)
Lech, Austria (© Michael Turek/Gallery Stock)(Bing United States)
Bryce Canyon National Park in winter, Utah (© AirPano)(Bing United States)
Eltz Castle between Koblenz and Trier, Germany (© Nikiforov Alexander/Shutterstock)(Bing United States)
European otter near Lelystad, Netherlands (© Ernst Dirksen/Minden Pictures)(Bing United States)
Smoo Cave in Durness, Scotland (© GS/Gallery Stock)(Bing United States)
Verona, Italy, along the Adige River (© Franco Cogoli/4Corners Images)(Bing United States)
Fingernail dancers’ hands in Thailand (© Raffaele Meucci/age fotostock)(Bing United States)
Aurora borealis over Tombstone Territorial Park, Yukon, Canada (© Nagesh Mahadev)(Bing United States)
Japanese tree frogs (© Shinji Kusano/Minden Pictures)(Bing United States)
Yosemite National Park after a snow storm, California (© Jeffrey Murray/Aurora Photos)(Bing United States)
Blue wildebeest herd at the Mara River in Masai Mara National Reserve, Kenya (© Winfried Wisniewski/Corbis)(Bing United States)
Under a bridge spanning the Odiel River, Huelva, Spain (© Antonio Arcos aka Fotonstudio Photography/Getty Images)(Bing United States)
Xavier Medina-Campeny’s “Homage to King” sculpture in Atlanta, Georgia (© L. Kragt Bakker/Shutterstock)(Bing United States)
Emperor penguin chicks in Antarctica (© Jan Vermeer/Minden Pictures)(Bing United States)
Eurasian red squirrels in Finland (© Jorma Luhta/Minden Pictures)(Bing United States)
Philipsburg, Sint Maarten (© Sean Pavone/Shutterstock)(Bing United States)
African buffalo at a watering hole in Queen Elizabeth National Park, Uganda (© Joel Sartoire/Getty Images)(Bing United States)
Westfriedhof subway station in Munich, Germany (© Manfred J. Bail/Alamy)(Bing United States)
Aspen forest in the Wasatch Mountains, Utah (© Marc Muench/Tandem Stills + Motion)(Bing United States)
Tsingy de Bemaraha National Park, Madagascar (© Frans Lanting/Mint)(Bing United States)
A kayaker crosses Grey Lake in Torres del Paine National Park, Chile (© Marco Simoni/Aurora Photos)(Bing United States)
Cranes moving cargo at Laem Chabang Port, Thailand (© Getty Images)(Bing United States)
Château de Chillon on Lake Geneva, Switzerland (© Philippe Saire Photography/Getty Images)(Bing United States)
Rhône Glacier ice grotto in Valais, Switzerland (© CEM/Getty)(Bing United States)
Mount Baker-Snoqualmie National Forest, Washington (© Ethan Welty/Aurora Photos)(Bing United States)