A polar bear plunging (© Sergei Gladyshev/500px)(Bing United Kingdom)

Gapstow Bridge in Central Park, New York City (© johnandersonphoto/iStock/Getty Images)(Bing United Kingdom)

Mask of Tutankhamun (© Sandro Vannini/Corbis)(Bing United Kingdom)

A dust devil swirls across Laguna Colorada in Bolivia (© Dordo Brnobic/Corbis)(Bing United Kingdom)

Dew on the leaf of a smoketree (© Jogchum Reitsma/Minden Pictures)(Bing United Kingdom)

The Portuguese Cistern in El Jadida, Morocco (© Michele Falzone/AWL/plainpicture)(Bing United Kingdom)

Stoat (aka ermine) in the Jura Mountains, France (© Biosphoto/SuperStock)(Bing United Kingdom)

The Alberta Rockies in Kananaskis Country, Canada (© Victor Liu/Solent News/REX Shutterstock)(Bing United Kingdom)

Manta rays near the Solomon Islands (© Don Silcock/Cultura/plainpicture)(Bing United Kingdom)

Łutownia River in the Białowieża Forest, Poland (© Johan Hammar/Naturbid/plainpicture)(Bing United Kingdom)

Bundles of dyed wool, Rome, Italy (© Ron Koeberer/Aurora Photos)(Bing United Kingdom)

An art installation by Olafur Eliasson in Aarhus, Denmark (© R. Ian Lloyd/Masterfile)(Bing United Kingdom)

Ice on the surface of Llyn Idwal, Snowdonia (© Graham Eaton/Minden Pictures)(Bing United Kingdom)

Waterfalls of Croatia’s Plitvice Lakes National Park in winter (© Nate Polta/Tandem Stills + Motion)(Bing United Kingdom)

Dried flowers and herbs at the Dubai Spice Souk in Dubai, United Arab Emirates (© Peter Adams/Offset)(Bing United Kingdom)

Hellroaring Peak in the Whitefish Range of Montana (© Noah Clayton/Tetra Images/Offset.com)(Bing United Kingdom)

Ashdown Forest, home of Winnie-the-Pooh (© Mark Phillips/Alamy)(Bing United Kingdom)

David Gareja Monastery Complex, Kakheti, Georgia (© Wiktor Bubniak/Shutterstock)(Bing United Kingdom)

Emperor penguin, Cape Washington, Antarctica (© Steve Bloom Images/Alamy)(Bing United Kingdom)

Three-toed sloth, Costa Rica (© Tilo G/Shutterstock)(Bing United Kingdom)

Tidal channels of Aldabra atoll near the Seychelles (© Wil Meinderts/Minden Pictures)(Bing United Kingdom)

Japanese persimmon tree in winter, Fukushima Prefecture, Japan (© Jyun Ogawa/Minden Pictures)(Bing United Kingdom)

Bubble-tip sea anemone in the Great Barrier Reef (© Gary Bell/Corbis)(Bing United Kingdom)

Fjords near Hellesylt, Norway (© AirPano)(Bing United Kingdom)

Houses beside the River Coln in Bibury, Gloucestershire (© Cotswolds Photo Library/Alamy)(Bing United Kingdom)

Fantastic leaf-tail gecko in Andasibe-Mantadia National Park, Madagascar (© Thomas Marent/Corbis)(Bing United Kingdom)

Stacked, long exposures of Earth taken from the International Space Station (© NASA/JSC/Science Photo Library)(Bing United Kingdom)

Curbar Edge in the Peak District, Derbyshire (© NPL/Minden Pictures)(Bing United Kingdom)

A robin and blue tit perched on a twig with frozen crab apples (© NPL/Minden Pictures)(Bing United Kingdom)

Interstate H-3 on the island of Oahu, Hawaii (© Royce Bair/Getty Images)(Bing United Kingdom)