A cemetery overlooking the river gorge in the Turpan Depression, Xinjiang, China (© George Steinmetz/Corbis)(Bing United States)
European ground squirrel (© Gerard Kummer/500px)(Bing United States)
Time lapse of the expressways in Bangkok, Thailand (© Imaake/Shutterstock)(Bing United States)
Interior view of a skylight in Willersley Castle, Cromford, Derbyshire, England (© Design Pics/plainpicture)(Bing United States)
USA Hockey Pond Hockey National Championships at Dollar Lake in Eagle River, Wisconsin (© George Steinmetz/Corbis)(Bing United States)
The misty bogs of Pian Gembro Regional Reserve near Aprica, Italy (© Robert Harding World Imagery/Offset)(Bing United States)
Eurasian red squirrels in action (© Vadim Trunov/Solent News/REX Shutterstock)(Bing United States)
‘New Orleans Second Line’ painting (© Bob Graham)(Bing United States)
Divers at the entrance to Blue Hole in Guam (© Aflo Relax/Masterfile)(Bing United States)
Salzach River in Austria (© T Schäffer/age fotostock)(Bing United States)
A lion in Hwange National Park, Zimbabwe (© Jeremy Woodhouse/Getty Images)(Bing United States)
Lake Bled, Slovenia (© Dan Briski/500px)(Bing United States)
Red-crowned cranes dance in Hokkaido, Japan (© Paul McKenzie/Minden Pictures)(Bing United States)
Bronze statue of George Washington in the Capitol rotunda in Washington, DC (© Michael Reynolds/Corbis)(Bing United States)
Woman emerges from a tunnel leading to Bet Amanuel, in Lalibela, Ethiopia (© Andrew McConnell/plainpicture)(Bing United States)
Golden Gate Bridge connecting to Marin County, California (© George Steinmetz/Corbis)(Bing United States)
A color-enhanced photo of Pluto, taken by NASA’s New Horizons spacecraft (© NASA/JHUAPL/SwRI)(Bing United States)
Snowboarder makes powder turn in backcountry terrain (© Jeff Curtes/Aurora Photos)(Bing United States)
Wooden walkway in the Whooping Crane Pond Conservancy on Hilton Head Island, South Carolina (© Rachid Dahnoun/Tandem Stills + Motion)(Bing United States)
Ice bubbles in Selbusjø, a lake between Selbu and Klæbu, Norway (© Erlend Haarberg/Alamy)(Bing United States)
Waitomo Glowworm Caves, New Zealand (© Fabian Ebi/500px)(Bing United States)
Mount Hua in Shaanxi Province, China (© Tao Ming/REX Shutterstock)(Bing United States)
A pygmy seahorse hiding in a sea fan (© NPL/Minden Pictures)(Bing United States)
A pygmy seahorse hiding in a sea fan (© Alex Mustard/Minden Pictures)(Bing United States)
Aurora borealis over the coast of Iceland (© Babak Tafreshi/Nimia)(Bing United States)
Casa Milà in Barcelona, Spain (© Nora De Angelli/500px)(Bing United States)
Polar bear cubs playing, Hudson Bay, Canada (© Meril D & Manon M/Minden Pictures)(Bing United States)
A crater in Þingvellir National Park, Iceland (© Ragnar Th Sigurdsson/Alamy)(Bing United States)