Cathedral Peak, Yosemite National Park, California (© Mark Brodkin/Rex Features)(Bing United States)
Silkworm cocoons at a weaving center in Luang Prabang, Laos (© David Noton Photography/Alamy)(Bing United States)
People boarding trains at Überseequartier station in HafenCity, Hamburg, Germany (© Shutterstock)(Bing United States)
King penguin surrounded by chicks, South Georgia (© Steve Bloom Images/Alamy)(Bing United States)
Halfmoon fish in a kelp forest offshore from San Diego, California (© Richard Herrmann/Minden Pictures)(Bing United States)
Paleokaria Bridge over the Portaikos River near Trikala, Greece (© Hercules Milas/Alamy)(Bing United States)
Dallas Divide near Ridgway, Colorado (© Stephanie Coffman/TandemStock)(Bing United States)
Marina Bay, Singapore (© Andy Lerner/Tandem Stills + Motion)(Bing United States)
Detail of the Fernsehturm television tower, illuminated during the Festival of Lights in 2011, Berlin, Germany (© Holger Burmeister/Alamy)(Bing United States)
Aldeadávila Dam, Arribes del Duero, Salamanca, Spain (© David Santiago Garcia/Aurora Photos)(Bing United States)
Barcolana regatta, Gulf of Trieste, Italy (© SIME/eStock Photo)(Bing United States)
Dry Island Buffalo Jump Provincial Park, Alberta, Canada (© Darwin Wiggett/Alamy)(Bing United States)
Izumo-taisha shrine in Izumo, Japan (© AM Corporation/Aflo Co. Ltd./Alamy)(Bing United States)
Palm Jumeirah in Dubai, United Arab Emirates (© AirPano)(Bing United States)
White storks at Cabo Sardão, Portugal (© David Santiago Garcia/Aurora Photos)(Bing United States)
Harriman State Park, Hudson River Valley, New York (© Arnab Banerjee/Gallery Stock)(Bing United States)
Detail of a painted beauty butterfly, Yasuni National Park, Amazon, Ecuador (© Pete Oxford/ Minden Pictures)(Bing United States)
Mangrove seedlings in Cayos Cochinos, Honduras (© Mac Stone/Tandem Stills + Motion)(Bing United States)
Painted Dunes below Cinder Cone, Lassen Volcanic National Park, California (© Kevin Schafer/Minden Pictures)(Bing United States)
The Solomon R. Guggenheim Museum, New York City (© Matt Mallams/Aurora Photos)(Bing United States)
North Fork of the Virgin River, Zion Canyon, Utah (© Shutterstock)(Bing United States)
Fox in Îles-de-Boucherville National Park near Montreal, Canada (© Rolland Gelly/Getty Images)(Bing United States)
View of San Francisco Bay from Grizzly Peak above Berkeley, California (© Toby Harriman/Tandem Still + Motion)(Bing United States)
Emperor tamarin monkey in Manu National Park, Peru (© Thomas Marent/Minden Pictures)(Bing United States)
Aerial view of farmlands, North Island, New Zealand (© Paul Chesley/Alamy)(Bing United States)
Dehesa de Moncayo Natural Park near Zaragoza, Spain (© David Santiago Garcia/Aurora Photos)(Bing United States)
Meltwater on the Greenland ice sheet, Greenland (© James Balog/Aurora Photos)(Bing United States)
Ring-necked pheasant male, Texel, Netherlands (© Thomas Hinsche/Corbis)(Bing United States)
Farmland in Makassar, South Sulawesi, Indonesia (© Keren Su/Corbis)(Bing United States)
Homage to legendary ghost stories (© Lindsay Daniels Design/Gary Spradling/Alamy, Corbis Images, Getty Images, plainpicture, Shutterstock, SuperStock)(Bing United States)