Aspen forest in the Wasatch Mountains, Utah (© Marc Muench/Tandem Stills + Motion)(Bing United Kingdom)

[20150125] - 'Aspen forest in the Wasatch Mountains, Utah (© Marc Muench/Tandem Stills + Motion)(Bing United Kingdom)'

Westfriedhof subway station in Munich, Germany (© Manfred J. Bail/Alamy)(Bing United Kingdom)

[20150124] - 'Westfriedhof subway station in Munich, Germany (© Manfred J. Bail/Alamy)(Bing United Kingdom)'

African buffalo at a watering hole in Queen Elizabeth National Park, Uganda (© Joel Sartoire/Getty Images)(Bing United Kingdom)

[20150123] - 'African buffalo at a watering hole in Queen Elizabeth National Park, Uganda (© Joel Sartoire/Getty Images)(Bing United Kingdom)'

Philipsburg, Sint Maarten (© Sean Pavone/Shutterstock)(Bing United Kingdom)

[20150122] - 'Philipsburg, Sint Maarten (© Sean Pavone/Shutterstock)(Bing United Kingdom)'

Eurasian red squirrels in Finland (© Jorma Luhta/Minden Pictures)(Bing United Kingdom)

[20150121] - 'Eurasian red squirrels in Finland (© Jorma Luhta/Minden Pictures)(Bing United Kingdom)'

Emperor penguin chicks in Antarctica (© Jan Vermeer/Minden Pictures)(Bing United Kingdom)

[20150120] - 'Emperor penguin chicks in Antarctica (© Jan Vermeer/Minden Pictures)(Bing United Kingdom)'

Xavier Medina-Campeny’s “Homage to King” sculpture in Atlanta, Georgia (© L. Kragt Bakker/Shutterstock)(Bing United Kingdom)

[20150119] - 'Xavier Medina-Campeny’s “Homage to King” sculpture in Atlanta, Georgia (© L. Kragt Bakker/Shutterstock)(Bing United Kingdom)'

Under a bridge spanning the Odiel River, Huelva, Spain (© Antonio Arcos aka Fotonstudio Photography/Getty Images)(Bing United Kingdom)

[20150118] - 'Under a bridge spanning the Odiel River, Huelva, Spain (© Antonio Arcos aka Fotonstudio Photography/Getty Images)(Bing United Kingdom)'

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